I think I have may have gotten to the bottom of this issue, which is caused by any previously installed version of Python 2.7x on the machine.
What happens is when Zeus runs a Python macro, that script can then find and load modules from that previous Python installation.
This then causes a C runtime library error, because the Python module will go looking through the PATH to find a C runtime dll meaning it finds the MSVCR90 runtime mentioned earlier.
But for that dll to load correctly it requires a manifest and because the Python 2.7x modules don't have the required manifest the load error is reported.
To fix this issue download this file: http://www.zeusedit.com/z300/scriptpy.zip
Just unpacking the contents of that file into the Zeus install folder.
Cheers Jussi