Add/Remove Program Issue

[Allen]

I have some program that already registered into
Add/Remove Program, but the physical program file is no
longer in hardrive (c:\).
Appreciated if anyone can let me know how to remove this
program that registered in 'Add/Remove program'.
Thanks.

 

[Mark V]

I have some program that already registered into
Add/Remove Program, but the physical program file is no
longer in hardrive (c:\).
Appreciated if anyone can let me know how to remove this
program that registered in 'Add/Remove program'.
Thanks.

Confirm all parts of "the program" are no longer active (drivers,
services, etc) as if the (proper) un-install routine had been run.

Do a full backup of the registry (with ntbackup perhaps).

Locate the
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion
\Uninstall\
key in the registry and under that locate the application-name key.
Delete it.

MSI installed applications may be more difficult. This is _not_ the
best way, but it will remove the entry in Add/Remove. Proper un-
installation is preferred. There will be leftovers in the registry
and possibly files on disk.