PPro CS4 and CS5 installed and Windows 7 default launch from project dbl-click is...CS4?

Question

This is sort of a curious one.  I have to keep CS4 installed to edit Camtasia files as their codec is a 32 bit no-go with 64 bit CS5...
Oddly, when I double-click any PPro project (most were created in CS5), they will launch CS4, not CS5.  When i go into properties and attempt to link a different application as the default for this project type, I browse to PPro CS5's executable and choose it, but end up back in the "Open with" dialog which again, only shows PPro CS4 as an option.
Oddness...  anybody else seeing this?  I just launch CS5 from it's shortcut and it loads whatever I want without an issue, but I still double click without thinking 3-5 times a week and have to back out...It's an annoyance.

Answer 1

Tim,
Are you comfortable wading around in the Windows registry? If so, you can probably fix this with a quick digit change:
In the Registry Editor (launch regedit from the Run dialog), find the following key: Computer\HKEY_CLASSES_ROOT\Adobe.Premiere.Pro.Project\shell\open\command.
Once you select the "command" key, you'll see the program destination string on the right side; likely it's pointing to CS4. Double-click the "(Default)" string and change the value to to following, exactly as pasted here:
"C:\Program Files\Adobe\Adobe Premiere Pro CS5\Adobe Premiere Pro.exe" "%1"
That's with the outside quotes and everything. OK the change, and you may or may not need a system restart, but that should correct the issue. Basically the file extension (in this case, .PRPROJ) is associated with a class (Adobe.Premiere.Pro.Project), and that class points to default application. Once that's fixed up, the chain should be put back together.
Also, there is another key in: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Adobe.Premiere.Pro.Project\shell\open\command. Changing the above should change this as well, but you may want to check it.