I wrote this little script that has worked for me to remove eTrust PestPatrol Anti-Spyware Corporate Edition 5.x.
:: PestpatrolUninstall Version 1.0 (Build 20051221)
@ECHO OFF>NUL
:: PestPatrol Remote Service is installed by the execution of
:: eTrust PestPatrol Anti-Spyware Corporate Edition console
NET STOP “PestPatrol Remoteâ€
C:\WINDOWS\system32\ppRemoteService -unregserver
ECHO Y| DEL “C:\WINDOWS\system32\ppRemoteService.exeâ€
:: PestPatrol Folder to be removed
:: REGSVR32 “C:\Program Files\Common Files\PestPatrol\ppctl.dllâ€
:: REGSVR32 /u “C:\Program Files\Common Files\PestPatrol\ppctl.dllâ€
ECHO Y| RD “C:\Program Files\Common Files\PestPatrol†/S