My case is similar but my upgrade version is Visio Pro 2002 instead of 2003.
I bought a new laptop and uninstalled Visio Pro 2002 (that required the Visio 5 to be fully installled on the machine to proceed) off my retired home PC. This all worked fine in XP.
The Visio Pro 2002 won't load because it wants Visio 5 installed and as the thread leader points out Visio 5 won't load on Windows 7. I would be willing to buy an upgrade If I would know the installer covers cases like this perhaps by verifying the visio
5 disk then then visio 2002, then then latest.
In cases such as mine I really just trying to have at home the tool I use at work for the odd project and I can't justify repurchasing something I have on my work laptop because the version's came from the other company.
Thanks for the history link and policy clarification. I can't say I agree with it. Most of us would keep upgrading but I can't spend $900 for a product I'll use a handful of times in a year so I will turn on my work laptop and make magical Visio drawings
there.