Tuesday, August 4, 2009

Marines solidify ban on Facebook, twitter

The U.S. Marine Corps made it official this week: Social networking sites such as Facebook and Twitter are banned from military networks.The new administrative directive issued Monday, doesn't change much. Marines have not been allowed to access sites like Facebook, MySpace or Twitter from military networks. The Marines have simply put an official stamp on the ban, while also laying out the steps to take for any Marine who wants to access a site as part of his or her job."These Internet sites in general are a proven haven for malicious actors and content and are particularly high risk due to information exposure, user generated content and targeting by adversaries," the directive noted. "The very nature of [social networking sites] creates a larger attack and exploitation window, exposes unnecessary information to adversaries and provides an easy conduit for information leakage ..."The ban, however, is only for people using Marines' equipment and networks while they are working. Marines may still Twitter or post to Facebook on their own time and on their own computers.The military isn't against using sites like Facebook and Twitter, said 1st Lt. Craig Thomas, a Pentagon-based spokesman for the Marine Corps.The U.S. Central Command has a Facebook page, a channel on YouTube and a Twitter account to get out information regarding operations news. The Army is using MySpace to recruit new soldiers and the U.S. Forces Afghanistan page on Facebook has more than 24,000 fans."The Marine Corps has got to find a balance between security and letting Marines capitalize on the technology," Thomas said in an interview with Computerworld. "We don't want information leaks and we want to keep Marines focused on the mission at work and we wanted to save bandwidth. We're trying to find the fine line."Thomas noted that 30 years ago, soldiers were warned about revealing too much information in letters home. Then 10 years ago, they were warned about how they used e-mail. Today, the focus is on social networks."You can't have someone posting, 'Hey, we're leaving on this date and at this time,'" he added. "Believe me, the enemy is checking out what you guys are reporting and what service men and women are saying online. The Marine Corps instills operational security. They need to be cognizant of what they're saying, whether verbally or what they're saying on social networking sites."Ken van Wyk, principal consultant at KRvW Associates, said the Marines have several avenues of concern with social network use and they're probably right on track with most of them."If they're concerned about the platform -- whether Facebook itself is secure -- then their concerns should go far beyond just Facebook," van Wyk said. "Any site that permits active content into the user's browser runs the same risk. Facebook is just one of many."

OCZ to release 1TB SSD this month

OCZ Technology Group Inc. said today it will release its Colossus solid-state drive (SSD) in the next couple of weeks, delivering the first 3.5-inch form factor SSD with 1TB of capacity.

The drive is aimed at external storage and desktop computing applications, and should be particularly attractive to gamers because of its high capacity and impressive performance.

Like OCZ's midrange, consumer 2.5-inch Vertex SSD, the Colossus uses an Indilinx controller. But unlike the Vertex, the new Colossus drive comes with an option of two or four controllers, and can be configured for internal RAID 0 for data resiliency.

OCZ said that each controller in the Colossus will act as a virtual drive, working with the other controllers through a separate RAID controller from Silicon Image Inc.

Using ATTO Disk Benchmarking software, in a four-controller configuration the Colossus has a maximum sequential read rate of 261MB/sec and a maximum sequential write rate of the same, OCZ says. Using the IOMeter benchmarking tool, the drive turned in 223MB/sec sequential read rate and 224MB/sec sequential write rate.

Bottom line on performance: No matter how you look at the numbers, this drive purportedly screams.

The Colossus will be available in 128GB, 256GB, 512GB and 1TB capacities for $300, $650, $1200 and $2200, respectively.


Saturday, August 1, 2009

My Computer Won't Shut Down Itself After Installing XP

There are a number of users who are noticing that their PC will no longer automatically power down/shut off without pressing the power off button on the computers unlike in Windows Me/95/2000. There could be a number of reasons for this - but the main one seems to be that ACPI is not enabled on the computer or in Windows XP. Here is how to try that out:

  1. Click - Start - Control Panel - Performance and Maintenance - Power Options Tab

  2. Then click APM - Enable Advanced Power Management Support

For a Safer, faster XP Close Unwanted Services

To disable unneeded startup services for a safer, faster XP, use the "Services" Admin Tool (Control Panel > Administrative Tools > Services). If you are a single user of a non-networked machine, you can disable the following items, with no ill effect.

Alerter
Clipbook
Computer Browser
Fast User Switching
Human Interface Access Devices
Indexing Service (Slows the hard drive down)
Messenger
Net Logon (unnecessary unless networked on a Domain)
Netmeeting Remote Desktop Sharing (disabled for extra security)
Remote Desktop Help Session Manager (disabled for extra security)
Remote Procedure Call Locator
Remote Registry (disabled for extra security)
Routing & Remote Access (disabled for extra security)
Server
SSDP Discovery Service (this is for the utterly pointless "Universal P'n'P", & leaves TCP Port 5000 wide open)
TCP/IP NetBIOS Helper
Telnet (disabled for extra security)
Universal Plug and Play Device Host
Upload Manager
Windows Time
Wireless Zero Configuration (for wireless networks)
Workstation

Boot Defragment

A very important new feature in Microsoft Windows XP is the ability to do a boot defragment. This basically means that all boot files are placed next to each other on the disk drive to allow for faster booting. By default this option is enabled but some upgrade users have reported that it isn't on their setup.

1. Start Regedit.
2. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Dfrg\BootOptimizeFunction
3. Select Enable from the list on the right.
4. Right on it and select Modify.
5. Change the value to Y to enable and N to disable.
6. Reboot your computer.

20 things you didn't know about Windows XP

You've read the reviews and digested the key feature enhancements and operational changes. Now it's time to delve a bit deeper and uncover some of Windows XP's secrets.

1. It boasts how long it can stay up. Whereas previous versions of Windows were coy about how long they went between boots, XP is positively proud of its stamina. Go to the Command Prompt in the Accessories menu from the All Programs start button option, and then type 'systeminfo'. The computer will produce a lot of useful info, including the uptime. If you want to keep these, type 'systeminfo > info.txt'. This creates a file called info.txt you can look at later with Notepad. (Professional Edition only).

2. You can delete files immediately, without having them move to the Recycle Bin first. Go to the Start menu, select Run... and type 'gpedit.msc'; then select User Configuration, Administrative Templates, Windows Components, Windows Explorer and find the Do not move deleted files to the Recycle Bin setting. Set it. Poking around in gpedit will reveal a great many interface and system options, but take care -- some may stop your computer behaving as you wish. (Professional Edition only).

3. You can lock your XP workstation with two clicks of the mouse. Create a new shortcut on your desktop using a right mouse click, and enter 'rundll32.exe user32.dll,LockWorkStation' in the location field. Give the shortcut a name you like. That's it -- just double click on it and your computer will be locked. And if that's not easy enough, Windows key + L will do the same.

4. XP hides some system software you might want to remove, such as Windows Messenger, but you can tickle it and make it disgorge everything. Using Notepad or Edit, edit the text file /windows/inf/sysoc.inf, search for the word 'hide' and remove it. You can then go to the Add or Remove Programs in the Control Panel, select Add/Remove Windows Components and there will be your prey, exposed and vulnerable.

5. For those skilled in the art of DOS batch files, XP has a number of interesting new commands. These include 'eventcreate' and 'eventtriggers' for creating and watching system events, 'typeperf' for monitoring performance of various subsystems, and 'schtasks' for handling scheduled tasks. As usual, typing the command name followed by /? will give a list of options -- they're all far too baroque to go into here.

6. XP has IP version 6 support -- the next generation of IP. Unfortunately this is more than your ISP has, so you can only experiment with this on your LAN. Type 'ipv6 install' into Run... (it's OK, it won't ruin your existing network setup) and then 'ipv6 /?' at the command line to find out more. If you don't know what IPv6 is, don't worry and don't bother.

7. You can at last get rid of tasks on the computer from the command line by using 'taskkill /pid' and the task number, or just 'tskill' and the process number. Find that out by typing 'tasklist', which will also tell you a lot about what's going on in your system.

8. XP will treat Zip files like folders, which is nice if you've got a fast machine. On slower machines, you can make XP leave zip files well alone by typing 'regsvr32 /u zipfldr.dll' at the command line. If you change your mind later, you can put things back as they were by typing 'regsvr32 zipfldr.dll'.

9. XP has ClearType -- Microsoft's anti-aliasing font display technology -- but doesn't have it enabled by default. It's well worth trying, especially if you were there for DOS and all those years of staring at a screen have given you the eyes of an astigmatic bat. To enable ClearType, right click on the desktop, select Properties, Appearance, Effects, select ClearType from the second drop-down menu and enable the selection. Expect best results on laptop displays. If you want to use ClearType on the Welcome login screen as well, set the registry entry HKEY_USERS/.DEFAULT/Control Panel/Desktop/FontSmoothingType to 2.

10. You can use Remote Assistance to help a friend who's using network address translation (NAT) on a home network, but not automatically. Get your pal to email you a Remote Assistance invitation and edit the file. Under the RCTICKET attribute will be a NAT IP address, like 192.168.1.10. Replace this with your chum's real IP address -- they can find this out by going to www.whatismyip.com -- and get them to make sure that they've got port 3389 open on their firewall and forwarded to the errant computer.

11. You can run a program as a different user without logging out and back in again. Right click the icon, select Run As... and enter the user name and password you want to use. This only applies for that run. The trick is particularly useful if you need to have administrative permissions to install a program, which many require. Note that you can have some fun by running programs multiple times on the same system as different users, but this can have unforeseen effects.

12. Windows XP can be very insistent about you checking for auto updates, registering a Passport, using Windows Messenger and so on. After a while, the nagging goes away, but if you feel you might slip the bonds of sanity before that point, run Regedit, go to HKEY_CURRENT_USER/Software/Microsoft/Windows/Current Version/Explorer/Advanced and create a DWORD value called EnableBalloonTips with a value of 0.

13. You can start up without needing to enter a user name or password. Select Run... from the start menu and type 'control userpasswords2', which will open the user accounts application. On the Users tab, clear the box for Users Must Enter A User Name And Password To Use This Computer, and click on OK. An Automatically Log On dialog box will appear; enter the user name and password for the account you want to use.

14. Internet Explorer 6 will automatically delete temporary files, but only if you tell it to. Start the browser, select Tools / Internet Options... and Advanced, go down to the Security area and check the box to Empty Temporary Internet Files folder when browser is closed.

15. XP comes with a free Network Activity Light, just in case you can't see the LEDs twinkle on your network card. Right click on My Network Places on the desktop, then select Properties. Right click on the description for your LAN or dial-up connection, select Properties, then check the Show icon in notification area when connected box. You'll now see a tiny network icon on the right of your task bar that glimmers nicely during network traffic.

16. The Start Menu can be leisurely when it decides to appear, but you can speed things along by changing the registry entry HKEY_CURRENT_USER/Control Panel/Desktop/MenuShowDelay from the default 400 to something a little snappier. Like 0.

17. You can rename loads of files at once in Windows Explorer. Highlight a set of files in a window, then right click on one and rename it. All the other files will be renamed to that name, with individual numbers in brackets to distinguish them. Also, in a folder you can arrange icons in alphabetised groups by View, Arrange Icon By... Show In Groups.

18. Windows Media Player will display the cover art for albums as it plays the tracks -- if it found the picture on the Internet when you copied the tracks from the CD. If it didn't, or if you have lots of pre-WMP music files, you can put your own copy of the cover art in the same directory as the tracks. Just call it folder.jpg and Windows Media Player will pick it up and display it.

19. Windows key + Break brings up the System Properties dialogue box; Windows key + D brings up the desktop; Windows key + Tab moves through the taskbar buttons.

20. The next release of Windows XP, codenamed Longhorn, is due out late next year or early 2003 and won't be much to write home about. The next big release is codenamed Blackcomb and will be out in 2003/2004.

Fix your Slow XP and 98 Network

ou can run "wmiprvse.exe" as a process for quick shared network access to Win98/ME machines. Stick it in Startup or make it a service.

"On the PC running XP, log in as you normally would, go to users, manage network passwords.
Here is where the problem lies. In this dialog box remove any win98 passwords or computer-assigned names for the win98 PCs. In my case , I had two computer-assigned win98 pc names in this box (example G4k8e6). I deleted these names (you may have passwords instead). Then go to My Network Places and -- there you go! -- no more delay!

Now, after I did this and went to My Network Places to browse the first Win98 PC, I was presented with a password/logon box that looked like this: logon: G4k8e6/guest (lightly grayed out) and a place to enter a password. I entered the password that I had previously used to share drives on the Win98 PCs long before I installed XP. I have the guest account enabled in XP.

This solves the problem for Win98 & XP machines on a LAN; I can't guarantee it will work for Win2K/ME machines as well, but the whole secret lies in the passwords. If this doesn't solve your slow WinXP>Win98 access problems, then you probably have other things wrong. Don't forget to uncheck 'simple file sharing,' turn off your ICS firewall, enable NetBIOS over TCP/IP and install proper protocols, services & permissions

FDISK Tutorial

The Basics of Fdisk:
Primary partitions are the only one that are bootable. They're always the C: drive when active. Normally you can only have one (more with some special tricks etc.) Extended partitions are needed when you want more than one partition. You can only have ONE Extended partition. Logical Drives come into the Extended partition. They are handy since you know that you can only have one Primary and one Extended so you can get more than only two partitions. They would be your D:, E:, etc. drives.

First you need to reboot your system with the Boot Disk inserted.

1.At the A: prompt start "FDISK."

2.If asked to use Large Disc support say Yes.

3.The first screen looks like this:

Create Dos Partition or Logical Drive
Set Active Partition
Delete Partitions or Logical DOS Drives
Display Partition Information
Change current fixed drive. (In case you have two or more Hard Drivess)
So, to prepare you hopefully did a backup from your data. You did, didn't you ?!

4.Next we need to remove the existing partitions. So go to 3.

5.Next screen like this:

Delete Primary DOS
Delete Extended DOS
Delete Logical Drives
Delete Non-DOS
Delete always in the following order

Logical (All) > Extended > Primary (Last)

6.Go back to first screen after all partitions have been removed.

7.Now we need to setup our new partitions. Go to 1.

This screen looks like this:

Create Primary DOS
Create Extended DOS
Create Logical DOS Drives
Here we create in the following order

Primary > Extended > Logical Drives.

8.First create the Primary. If asked to use all space say No and enter the amount you wish for the C: drive. It should be set automatically to be the (only) Active partition. If not it may ask you or you have to select "2. Set active partition" from the main menu.

9.Next create the Extended Partition. Use all space left.

It probably advances automatically to the next step, creating the Logical DOS Drives.

10.Enter the amount you wish for the D: partition and than the rest for the third partition.

Think first about the size for the partitions.

OK now we're finished with FDISK so just exit it. Next you need to reboot with the disc still inserted and Format all partitions (the C: partition might need to be formatted with "format c: /s", check the Win95 tip). Another reboot and you can go ahead and install Windows.

When your system supports booting from CD just insert the Windows CD and reboot. The setup will start.

If not, follow these steps:

Win98: insert Boot Disk and CD, reboot, choose "2. boot with CDROM support" and once you're at the prompt change to your CD-drive letter (depends on your partition setup) and enter "setup".
Win95: You must format the C: partition with "Format C: /s"!. Next install your CDROM driver, reboot, insert the Win95 CD, change to the CD-driveletter, enter "setup".
I hope I made no mistakes.

Dual Boot XP

A computer can be configured to let you choose between two or more operating systems each time you restart the computer. With multibooting, you can choose which operating system to run or specify a default OS if no selection is made during the restart process.

Computers Containing Multiple Windows 2000 or Windows XP Partitions
Before installing Windows 2000 and Windows XP on the same machine, you need to prepare your system with different partitions (a process that divides a hard disk into separate sections that can be formatted for use by a file system. Partitions typically have different drive letters such as C or D).
One OS per partition
It’s important to install each operating system on a different partition and install the applications used with each operating system on the same partition as the OS. If an application is used with two different operating systems, install it on two partitions. Placing each operating system in a separate partition ensures that it will not overwrite crucial files used by the other OS.

Install Latest OS Last
In general, you should install the most recent OS last—after you have installed all other operating systems on the target computer. In this case, you should install Windows 2000 and then install Windows XP.

Unique Computer Name
You can set up a computer so that it has multiple installations of Windows XP on multiple partitions. However, you must use a different computer name for each installation if the computer participates in a Windows 2000 Server domain. Because a unique security identifier (SID) is used for each installation of Windows XP on a domain, the computer name for each installation must be unique—even for multiple installations on the same computer.

Checklist Summary
To configure a computer containing Windows 2000 and Windows XP, review the following guidelines:

Install each operating system on a separate drive or disk partition.
Install Windows XP after you have installed Windows 2000.
When you perform a new installation of Windows XP (as opposed to an upgrade), by default, the installation is placed on a partition on which no other operating system is located. You can specify a different partition during Setup.
Don’t install Windows XP on a compressed drive unless the drive was compressed with the NTFS file system compression feature.
On any partition where you perform a new installation of Windows XP (as opposed to an upgrade), you will need to re-install any programs, such as word processing or e-mail software, after Setup is complete.
Install the programs used by each operating system on the partition with that system. If you want your programs to run with multiple operating systems, you need to install separate copies of the programs in each of the operating system partitions.
If the computer is on a Windows 2000 Server domain, each installation of Windows XP on that computer must have a different computer name.


Computers Containing Windows NT 4.0 and Windows XP
Setting up a computer to run Windows XP as well as an earlier operating system such as Windows NT Workstation 4.0 requires addressing compatibility issues among different file systems: NTFS, FAT, and FAT32.

Normally, NTFS is the recommended file system because it supports important features, including the Active Directory™ service and domain-based security. However, using NTFS as the only file system on a computer that contains both Windows XP and Windows NT is not recommended. On these computers, a FAT or FAT32 partition containing the Windows NT 4.0 operating system ensures that when started with Windows NT 4.0, the computer will have access to needed files. In addition, if Windows NT is not installed on the system partition, which is almost always the first partition on the disk, it is recommended that the system partition also be formatted with FAT. This is because earlier operating systems, with one exception, can't access a partition if it uses the latest version of NTFS. The one exception is Windows NT version 4.0 with Service Pack 4 or later, which has access to partitions with the latest version of NTFS, but with some limitations.

Even the latest Service Pack does not provide access to files using the new features in NTFS. Windows NT 4.0 cannot access files that have been stored using NTFS features that did not exist when Windows NT 4.0 was released. For example, a file that uses the new encryption feature won’t be readable when the computer is started with Windows NT 4.0 Workstation, which was released before the encryption feature existed.

Note: If you set up a computer so that it starts with Windows NT 3.51 or earlier on a FAT partition, and Windows XP on an NTFS partition, when that computer starts with Windows NT 3.51, the NTFS partition will not be visible.

Checklist Summary
To configure a computer containing Windows NT 4.0 and Windows XP, review the following guidelines:

As explained above, using NTFS as the only file system on a computer containing both Windows XP and Windows NT is not recommended.
Make sure that Windows NT 4.0 has been updated with the latest released Service Pack available for download before installing Windows XP.
Install each operating system on a separate drive or disk partition.
When you perform a new installation of Windows XP (as opposed to an upgrade), by default, the installation is placed on a partition on which no other operating system is located. You can specify a different partition during Setup.
Don’t install Windows XP on a compressed drive unless the drive was compressed with the NTFS file system compression feature.
On any partition where you perform a new installation of Windows XP (as opposed to an upgrade), you will need to re-install any programs, such as word processing or email software, after Setup is complete.
Install the programs used by each operating system on the partition with that system. If you want your programs to run with multiple operating systems, you need to install separate copies of the programs in each of the operating system partitions.
If the computer is on a Windows NT Server or Windows 2000 Server domain, each installation of Windows XP on that computer must have a different computer name.


Computers Containing MS-DOS or Windows 9x and Windows XP
As explained above you need to address file system compatibility to ensure a multibooting configuration with these earlier operating systems and Windows XP. Remember to install the latest operating system last otherwise important files may be overwritten.

Checklist Summary
To configure a computer containing Windows XP and Windows 9x or MS-DOS, review the following guidelines:

On computers that contain MS-DOS and Windows XP:

MS-DOS must be installed on a basic disk on a partition formatted with FAT. If MS-DOS is not installed on the system partition, which is almost always the first partition on the disk, the system partition must also be formatted with FAT.
Windows XP must be installed last. Otherwise important files needed for starting Windows XP could be overwritten.
On computers that contain Windows 95 and Windows XP:

As in the case above, Windows 95 must be installed on a basic disk on a partition formatted with FAT. (For Windows 95 OSR2, FAT32 may be used.) If Windows 95 is not installed on the system partition, which is almost always the first partition on the disk, the system partition must also be formatted with FAT (or FAT32 for Windows 95 OSR2).
Compressed DriveSpace or DoubleSpace volumes won’t be available while you are running Windows XP. It is not necessary to uncompress DriveSpace or DoubleSpace volumes that you will access only with Windows 95.
Windows XP must be installed last. Otherwise important files needed for starting Windows XP could be overwritten.
On computers that contain Windows 98 (or Windows ME) and Windows XP:

As in the cases above, Windows 98 or Windows Millennium Edition (ME) must be installed on a basic disk on a partition formatted with FAT or FAT32. If Windows 98 or Windows ME is not installed on the system partition, which is almost always the first partition on the disk, the system partition must also be formatted with FAT or FAT32.
Compressed DriveSpace or DoubleSpace volumes won’t be available while you are running Windows XP. It is not necessary to uncompress DriveSpace or DoubleSpace volumes that you will access only with Windows 98.
Windows XP must be installed last. Otherwise important files needed for starting Windows XP could be overwritten.


Installation and How to :

The order of installation is critical if you want a successful multiboot installation. In general terms, install non–Microsoft operating systems and earlier versions of the Windows operating system first. This would mean installing UNIX or Linux operating systems first; then Windows 95 or Windows 98 or Windows Me; then Windows NT; and finally, Windows 2000 and/or Windows XP. (In the unlikely event that you’re installing MS–DOS, you can install that either before or after UNIX– or Linux–based operating systems, and generally I’d opt for before.) It’s also important to understand that, without using a third–party product to help out, you can’t install non-Microsoft operating systems, or Windows 95 and Windows 98 on the same computer, and that you can install only a single version of Windows95/98/Me. But you can install as many different versions of Windows NT and later versions of the Windows operating system as you have available logical drives, with the sole caveat that you must install all Windows NT versions before you install any Windows 2000 or Windows XP versions.

Let’s take a typical installation. Our target computer must be able to boot into Windows 98, Windows NT 4 Workstation, Windows 2000 Professional, and Windows XP Professional. We have a 2–GB partition to hold our programs and the whole thing must fit on a single 10–GB hard drive. No problem. First, we partition the hard drive into two partitions: a 2–GB primary partition, and an 8-GB extended partition using FDisk. In the extended partition, we’ll create four logical volumes—D, E, F and G—to hold our remaining operating systems and our programs.

After the disk is partitioned, format the primary partition using the FAT16 file system and install Windows 98 on it. So far so good. Now, format your D drive with FAT16 as well. Eventually, you’ll install your programs on D drive.

Next, install Windows NT 4 Workstation. You will install this on any of the logical volumes not already used (either E drive, F drive or G drive) and choose NTFS as your file system. Leave D drive alone, because your applications go there where they’re visible to all operating systems. When you install Windows NT, it recognizes that you already have Windows 98 on the computer. Then it automatically sets up for dual booting between Windows 98 and Windows NT by creating a boot.ini file, which creates a menu of available operating systems. After you have Windows NT 4 installed, immediately apply Service Pack 6, before you install Windows 2000.

Finally, install Windows 2000 and Windows XP, each in its own logical volume. Again, choose NTFS as the file system. As you install them, they are automatically added to the boot.ini file on your C drive, which lets you choose operating systems at start up.

Making Older Programs Run under Windows XP

Some programs designed for earlier versions of Windows won't run under Windows XP. Until you can get your hands on a program upgrade for Windows XP, you can try running the program in one of Windows XP Compatibility Modes by following these steps:

1. Double-click the desktop shortcut called Run in Compatibility Mode that's automatically installed there when you install Windows XP to open a full-size Help and Support window with instructions and controls for starting an application in Compatibility Mode.

You can also open this window by clicking Start on the Windows taskbar and then clicking Help and Support on the Start menu. Next, click the Find Compatible Hardware and Software for Windows XP link and then click the Program Compatibility Wizard link at the bottom of the window navigation pane.

2. Read the instructions on the Welcome to Programs Compatibility Wizard screen, paying particular attention to the warning about not using Compatibility Mode on programs, such as anti-virus software and backup tools, that specifically prohibit their use on future editions of the operating system before you click the Next button.

3. In the next screen, click the radio button indicating how you want to locate the program you want to run: I Want to Choose from a List of Programs, I Want to Use the Program in the CD-ROM Drive, or I Want to Locate the Program Manually.

4. If you selected the I Want to Choose from a List of Programs radio button, click the name of the program you want to run in the list that appears before you click Next.

If you selected the I Want to Locate the Program Manually radio button, type the path to the program in the text box that appears or click the Browse button and locate it in the Please Select Application dialog box and select the Open button before you click Next.

5. In the next screen, called Select a Compatibility Mode for the Program, click the radio button for the version of Windows under which your program used to run or was designed to run: Microsoft Windows 95, Microsoft Windows NT 4.0 (Service Pack 5), Microsoft Windows 98/Windows Me, or Microsoft Windows 2000.

6. In the next screen called Select Display Settings for the Program, click the check box or boxes for the display settings that are recommended for running the program.

These check box options include: 256 Colors, 640 x 480 Screen Resolution, and Disable Visual Themes.

7. Click the Next button to advance to the Test Your Compatibility Settings screen where you can verify your selections for the program.

8. If your settings are correct, click the Next button to run the program in compatibility mode.

If Windows XP can run the program in the selected Compatibility Mode, the program then launches in a separate window. If Windows can't run the application, you receive an alert box indicating that there's a problem. In such a case, you have to contact the software manufacturer and get an upgrade for the application that's specifically designed for the Windows XP operating system. Note that when you exit the program that you're running in compatibility mode, Windows automatically returns you to the Program Compatibility Wizard in the Help and Support window.

NTFS vs. FAT

To NTFS or not to NTFS—that is the question. But unlike the deeper questions of life, this one isn't really all that hard to answer. For most users running Windows XP, NTFS is the obvious choice. It's more powerful and offers security advantages not found in the other file systems. But let's go over the differences among the files systems so we're all clear about the choice. There are essentially three different file systems available in Windows XP: FAT16, short for File Allocation Table, FAT32, and NTFS, short for NT File System.


FAT16
The FAT16 file system was introduced way back with MS–DOS in 1981, and it's showing its age. It was designed originally to handle files on a floppy drive, and has had minor modifications over the years so it can handle hard disks, and even file names longer than the original limitation of 8.3 characters, but it's still the lowest common denominator. The biggest advantage of FAT16 is that it is compatible across a wide variety of operating systems, including Windows 95/98/Me, OS/2, Linux, and some versions of UNIX. The biggest problem of FAT16 is that it has a fixed maximum number of clusters per partition, so as hard disks get bigger and bigger, the size of each cluster has to get larger. In a 2–GB partition, each cluster is 32 kilobytes, meaning that even the smallest file on the partition will take up 32 KB of space. FAT16 also doesn't support compression, encryption, or advanced security using access control lists.

FAT32
The FAT32 file system, originally introduced in Windows 95 Service Pack 2, is really just an extension of the original FAT16 file system that provides for a much larger number of clusters per partition. As such, it greatly improves the overall disk utilization when compared to a FAT16 file system. However, FAT32 shares all of the other limitations of FAT16, and adds an important additional limitation—many operating systems that can recognize FAT16 will not work with FAT32—most notably Windows NT, but also Linux and UNIX as well. Now this isn't a problem if you're running FAT32 on a Windows XP computer and sharing your drive out to other computers on your network—they don't need to know (and generally don't really care) what your underlying file system is.

The Advantages of NTFS
The NTFS file system, introduced with first version of Windows NT, is a completely different file system from FAT. It provides for greatly increased security, file–by–file compression, quotas, and even encryption. It is the default file system for new installations of Windows XP, and if you're doing an upgrade from a previous version of Windows, you'll be asked if you want to convert your existing file systems to NTFS. Don't worry. If you've already upgraded to Windows XP and didn't do the conversion then, it's not a problem. You can convert FAT16 or FAT32 volumes to NTFS at any point. Just remember that you can't easily go back to FAT or FAT32 (without reformatting the drive or partition), not that I think you'll want to.

The NTFS file system is generally not compatible with other operating systems installed on the same computer, nor is it available when you've booted a computer from a floppy disk. For this reason, many system administrators, myself included, used to recommend that users format at least a small partition at the beginning of their main hard disk as FAT. This partition provided a place to store emergency recovery tools or special drivers needed for reinstallation, and was a mechanism for digging yourself out of the hole you'd just dug into. But with the enhanced recovery abilities built into Windows XP (more on that in a future column), I don't think it's necessary or desirable to create that initial FAT partition.

When to Use FAT or FAT32
If you're running more than one operating system on a single computer (see Dual booting in Guides), you will definitely need to format some of your volumes as FAT. Any programs or data that need to be accessed by more than one operating system on that computer should be stored on a FAT16 or possibly FAT32 volume. But keep in mind that you have no security for data on a FAT16 or FAT32 volume—any one with access to the computer can read, change, or even delete any file that is stored on a FAT16 or FAT32 partition. In many cases, this is even possible over a network. So do not store sensitive files on drives or partitions formatted with FAT file systems.

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