check whether or not a program is installed

[James Tsao]

is it possible to see whether or not a program is installed on a
machine? for example, i'd like to check if winzip is installed and if
it is installed, the location of the executable. thanks.

JT

 

[Tom Porterfield]

is it possible to see whether or not a program is installed on a
machine? for example, i'd like to check if winzip is installed and if
it is installed, the location of the executable. thanks.

You might consider attempting to read the default value from the
registry at
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App
Paths\winzip.exe.