Visio 2003 should install and run fine on all versions of Vista. As David
stated, Vista requires Admin permissions in order to perform an install, so
any install failures are likely to lie in that area. Take a look at the
install logs in teh %temp% folder, and reference the Office t-shooting KB
for assistance.
How to use a setup log file to troubleshoot setup problems in Office
http://support.microsoft.com/kb/826511/en-us
Barb Way
Product Support - Visio
Microsoft Corporation
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