I have a Latitude D630(4GB of Ram win7 x64) with the Intel 965 video driver, I have been having this issue with the memory leak for about 2 weeks, 20 minutes to an hour was all I got before the app crashed or blue screened. My Ram usage was well over 3 GB for the cityofheroes.exe process. I have tested out a few of the other suggestions but adding
-useTexEnvCombine
to the end of the COHupdater shortcut has given me an hour of Play the cityofheroes.exe is still only at 1.2gb, not a fix but workable.
The other suggestions produced minimal results.
@BiohazardZero thanks for the suggestion!