It is always better to use the Set variable name instead of its location in
the list (which could be different between different computers). For the
operating system, that would be 'OS' as in...

mysystem = Environ("OS")

However, this only return Windows_NT whereas the Application.OperatingSystem
statement mentioned elsewhere in this thread returns this..

Windows (32-bit) NT 6.00

which contains a little extra information. By the way, if you ever want to
see the various variable (names, for use in the Environ statement, and
settings), bring up a Command Prompt window (found in All Programs,
Accessories I think), type SET and hit the Enter key.

Rick


"Mike H" wrote in message
...
Hi,

This reports it correctly on mine but not tested on other systems

mysystem = Environ(13)

Mike

"avi" wrote:

Hello,

Is there a simple way to know programatically if the user's computer
runs Vista or XP?

Thanks a lot
Avi