Max files open with the wrong version of Max, and Open-With doesn’t fix it
In Windows Vista, the “open with…” command doesn’t like to differentiate between programs that have the same filename, even if they are in different folders. This means that if your .max files are opening with max8t and you want them to open with max2009 32 bit, trying to do “open with” and navigating to the folder with the correct version has no effect.
This can be alleviated by a simple registry edit. You’ll probably need to log in as an administrator. Just run regedit.exe and navigate to:
Rightclick and modify the entry on the right showing the incorrect directory to run max from, and change it to the correct one, following the existing syntax. In my case, I’d type:
“C:\Program Files (x86)\Autodesk\3ds Max 2009\3dsmax.exe” “%1”
After that, you can change the text it shows at the top when rightclicking on a max file by going up a level in regedit to:
and change the value that shows up on the right to have the proper text. In my case, I’d use the text:
Open with Autodesk 3ds Max 2009 32-bit
If you haven’t used regedit before – don’t change or delete anything unless you’ve verified elsewhere that it isn’t going to break anything. if you don’t know what you’re doing, find someone who does to help you. Same reason you wouldn’t delete your “windows” folder.