This is an even easier method to get rid of the Drive menu and not have the DLL loaded:
START -> Run...
regsvr32 /u "%CommonProgramFiles%\Adobe\Adobe Drive CS4\ADFSMenu.dll"
on 64bit Windows:
START -> Run...
regsvr32 /u "%CommonProgramFiles(x86)%\Adobe\Adobe Drive CS4\ADFSMenu.dll"
Cheers,
phaelox
