......and one more reply.
Please note that Vista ITSELF is a VERSION of Windows.I assume you want to
find out what edition of Vista are you running.
To do that,press the two keys `Windows key+Pause/Break` simultaneously.You
will see the `System properties` window appearing.There,under `View basic
information about your computer`,under the heading `Windows edition`,you can
determine what edition of Vista it is.
In case that was NOT your question and you wanted to ask that which version
of WINDOWS am I running,that can be done by going to Start>Run,typing in
`winver` without the quotes and clicking OK.A new window will appear giving
you the version number of Windows which you are running (beginning with 6
for Vista)
Find what version of vista is running.
Thanks