XP SP2 includes MM version 2.1 and was installed with the service pack. You
may have both versions on the computer (according to Papa John both can
peacefully coexist.) You should find the 2.1 version in C:\Program
Files\Movie Maker and it is called moviemk.exe. Go to that location and
attempt to run the program located there. If you start the program
successfully click Help and then about for the version number.
The other problem which I missed in your original post is that you have
apparently had a failed installation of either SP2 or some later updates. I
recommend that you right click on My Computer and then click on properties.
You should see the version of XP on the computer. It should read Microsoft
Windows XP on the line after System: then the next line should be the
version you have installed (Home, Pro. etc.) then the Version should be 2002
and then any SP you have installed. If SP2 does not show go to this web site
to see what needs to be done to successfully install the SP2 files.
http://michaelstevenstech.com/ I had one computer that SP2 would not
install on until I followed all the instructions listed on this web site.
I also recommend that the following SP2 installation file be downloaded from
Microsoft and then installed instead of using the auto update for the SP2.
This is a large download (170 MB). Watch wrap on the URL also.
http://www.microsoft.com/downloads/...DBE-3B8E-4F30-8245-E368D3CDB5A&displaylang=en