uninstall a program using the command pr

From a DOS command promt, no. Very few programs support removal from DOS mode.

From the "Run" dialog box, maybe. If the program has a built in executable uninstall program, then yes. Just browse to the program folder, and execute the uninstall.
(Note, most programs that have this option, have an option in their menus to uninstall)
(Note 2, not all of these programs remove the program name from the add/remove menu)

The problem is that as oppossed to the DOS days when all you had to dowas delete the program directory, you have a large number of files and folders to change, delete, or edit.
There are keys and links in the registry and sometimes in the system files that need to be edited or removed.
There are also files placed inthe Windows folders that may no longer be needed.

Bottom line, use Add/Remove programs for ALL un-installs.

Chas

Yes you can..
If you look in the HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall hive you will see all kind of applications listed.
Under the value "Uninstallstring" or "QuietUninstallstring" you will find the command to use to uninstall the application.
Note: This will not be a pure commandprompt process, but will spawn the uninstaller program in the Windows environment.

Good luck,

Wim