Hi Jon,
> I installed AG 3.1 a couple of days ago on my desktop machine > and it seems to work fine: WinXP Pro x64. Of course, AG > requires a 32 bit version of Python 2.4. > > I then installed an update to Tecplot which installed a 64 bit > version of python 2.5. My AG was broken because the environment > variable PYTHONHOME had its value changed from C:\Python24\ > to C:\Python25\. When I changed the variable to point to the > older python AG worked again. Now, manually changing the > environment variable depending on the software I want to run > is somewhat inelegant, and I'd like to think that the packages > are a bit more sophisticated than that. I Googled around and > Python coexistence on Windows doesn't seem to work, but I'm hoping > that someone here might have a better experience and be willing > to share. You could create a AG.cmd file that sets the env variables locally before starting the VenueClient, with something like: @echo off set PYTHONHOME=C:\Python24 set PYTHONPATH=%PYTHONHOME% set PYTHON=%PYTHONHOME%\python.exe set PYTHONW=%PYTHONHOME%\pythonw.exe set PATH=%PYTHONHOME%;%PATH% start "AG" "%PYTHONW%" "C:\Program Files\AccessGrid3\bin\VenueClient3.py" then double click AG.cmd. Cheers, Doug