Just wanted to throw my two cents in here.
I’ve been working on a video for my company and was having absolutely no problems with Premiere Pro CS3. I left to go home one day and come back to work on the project the following day and BOOM! C++ Runtime error with some Low System Memory errors on the side.
After that first error, I found that there are several things that can be done to remedy the situation on many of the various forums out there. Every single time though the dreaded C++ errors would return.
Since it was quite bothersome to try each of the prescribed fixes each time this happened I continually went back from time to time to see if anyone had uncovered a permanent fix for this issue.
This is what I found. A microsoft hotfix for Windows XP SP2.
https://support.microsoft.com/default.aspx?scid=kb;en-us;884538
I wasn’t sure that it would work but decided to go out and check the versions of the files that the hotfix references and sure enough they the versions on the files match the version listed in the hotfix.
I crossed my fingers and ran the hotfix.
Afterwards, Premiere Pro seems to spread the load out across all 4 of my CPUs more effectively and my system memory usage dropped by more than half.
I cannot say that this is a permanent fix, since I’ve only worked on 5 projects since that time, but all of those projects have been huge with lots of effects and titles and I haven’t experienced any C++ errors or the Low System Memory errors yet.
If you would like to try the hotfix I would definitely backup everything on that system before you run it. It may work fine and be unnecessary but its always better to be safe when there’s the chance that something could go horribly wrong.
Hope this helps.