If you are going from XP to Vista you don't need
to convert it.
What you do need however is to include copies
of 'all' the source files. The .mswmm project file
does not include source files it simply records
the path to the current location. Once you have
the .mswmm file and all the source files in a folder
on the Vista hard drive...open the project file and
right click the Red Xs and Browse to the source
files to re-establish the path.
Beware...the Vista...mswmm file cannot be used
on an XP system. As PapaJohn says...
"it's a one way street".
J. Inzer MS-MVP
Digital Media Experience
This is not tech support
I am a volunteer
Solutions that work for
me may not work for you
Proceed at your own risk