>I was wondering if it is best to check the windows registry to find if an application is installed on a work station? And if so, what command or control would I use to find a file name 'AcroRd32.exe' in the registry using code only. I've looked at serveral controls in the files section, but could not find one to do what I want it to do. I would appreciate any help.

THe best way to do this, IMHO, is to find out where the program registers itself in the registry and look there specifically. If the program associates any files with itself, you can check the file's association by looking it up in HKEY_CLASSES_ROOT.

For example, to chack if Acrobat Reader is installed on a machine, you could check if the file type pdf is registered and holds the correct content type.