When un-installing applications in an environment where you have my documents re-directed to a mapped network drive for example “H:\My Documents” you may get an error and the un-installer will quit. (I think may be an installshield error)
Sometimes you don’t really want to re-map the network drive, but you want to get around the error message and complete the un-installation.
subst <TheDriveIt’sComplainingAbout> C:\
subst H: C:\
This will create a drive and allow the un-installation to complete.
Windows XP Pro SP2