If you wanna find more tricks, you just using Google Search below

Google

Removing Services Dependencies.

This will allow you to disable a service or uninstall it from your system without effecting another service that depends on it. Here's how you do it
1. After you have set your services the way you want them and you have disabled/uninstalled something that another services depends on, run "regedit"
2. Under HKEY_LOCAL_MACHINE\System\find the service that will not function, do to another service being disabled/uninstall (found in ControlSet001\Services, ControlSet002\Services, and CurrentControlSet\Services)
3. Once you have found the service right-click on the string value, "DependOnService,"and modify
4. You should now see a list of services that it is dependent on. Simply delete the service that you have disabled/uninstalled
5. Restart your computer and your ready to go Disclaimer REMEMBER TO BACKUP YOU REGISTRY FIRST I'm not totaly sure if this will have any negative effects on your system.
I used this method after uninstalling "Netbios over Tcpip" from my system completely, so that my Dhcp service would function and I have had NO negative effects on my system.

 

HIDDEN WINDOWS XP ICONS.

Windows XP Pro and Home contains icons for folders and files that cannot normally be seen, you can select to view hidden files from the folder options menu, but there are still some that remain hidden.You can set windows to view these files as normal hidden files, so that when you use the view hidden files and folders toggle from the folder options menu that these will be turned on/off along with the normal hidden files.These files are usually system files and should not be altered or deleted unless you really know what you are doing, if you don't yet still wish to change them I might suggest that you create back-ups of your system first.

I will personally accept no responsibility for any damage caused by using this tweak. To view the hidden files you need to open up regedit, if you are not sure how to do this, select run from the start menu and type in 'regedit' without the apostrophe's. In the regedit window, expand out the groups by clicking on the '+' next to the name in the left hand column of regedit, and navigate to the below address.HKEY_CURRENT_USER \SOFTWARE \MICROSOFT \WINDOWS \CURRENTVERSION \EXPLORER \ADVANCEDwhen you have clicked the advanced folder on the left pane, look down the list at the titles in the right hand pane, one of those titles is 'ShowSuperHidden'double click the title and in the window that appears set the value to equal 1 to show the super hidden files and 0 to hide them.