How to uninstall application on computers without *.msi file using System Center Configuration Manager 2007?
In this example we uninstall Window Defender using SCCM 2007 and MsiExec /X command.
1.      Create new task (task sequences) in Operating System Deployment.

2.      Edit new task by clicking right button on the mouse.
3.      Click Add -> General -> Run Command Line

4.      In command Line write:
MsiExec.exe /X{A06275F4-324B-4E85-95E6-87B2CD729401} /qn

5.      Advertise this task to collection.

