How do i uninstall programs that are NOT on the add/remove programs list?

Use their un-install program. Normally in the Start Menu list for better quality programs. For middle quality programs, there is often just an un-install program some where in its program folder or an option on one of its tab menus. For the el cheap-o's you just have to manually delete the program, their folders, links and any Registry entries.

download and Install TweakUI, it will give you more list of add/remove: http://www.microsoft.com/ntworkstation/downloads/PowerToys/Networking/NTTweakUI.asp

Do u mean the hidden software? such as; windows messager? fellow this step Apparently Microsoft didn't want you to be able to remove useless garbage like Windows Messenger. It's installed by default, and it doesn't appear in the Add/Remove Program applet in controlpanel. Thankfully, you can force the issue by editing the SYSOC.INF file, located in C:\Windows [or your Windows Directory]\inf folder. Open it in Notepad. Under the [Components] heading, you'll see a whole bunch off parameters for various Windows applets. Some off them contain the word "Hide". Those particular programs, which include Windows Messenger (msmsgs), Terminal Server, PinBall, and others, are installed on your XP system, but their intries are hidden from Add/Remove Dialog. To remove Windows Messenger, edit Hide out of the line that reads: msmsgs=msgrocm.dll,OcEntry,msmsgs.inf,hide,7 So that it looks like this: msmsgs=msgrocm.dll,OcEntry,msmsgs.inf,7 Save the file, close it and open Add/Remove Program Applet. Click on Windows Components button and you'll see Windows Messenger listed. Unchech it and click Next to purge that Silly program from your system. -------