Have you tried re-setting sys.argv before running setup (aka
sys.argv=['setup.py','--build'] ; run setup.py,local )?  If I'm
understanding the help for the pymol run command correctly, you'd want to
use either local or module (so that the global namespace doesn't confuse
things).
 
Now that finaly got me closer to the solution! :-) This way I could start the setup.py installation. Thx!
 
But now I'm facing another problem:
 
PyMOL>sys.argv=['setup.py','build']
PyMOL>run setup.py, local
running build
running build_py
copying MySQLdb\release.py -> build\lib.win32-2.4\MySQLdb
running build_ext
Traceback (most recent call last):
  File "C:\Program Files\DeLano Scientific\PyMOL/modules\pymol\parser.py", line 291, in parse
    parsing.run_file(exp_path(args[nest][0]),pymol_names,{})
  File "C:\Program Files\DeLano Scientific\PyMOL/modules\pymol\parsing.py", line 407, in run_file
    execfile(file,global_ns,local_ns)
  File " setup.py", line 19, in ?
    setup(**metadata)
  File "C:\Program Files\DeLano Scientific\PyMOL\py24\lib\distutils\core.py", line 166, in setup
    raise SystemExit, "error: " + str(msg)
SystemExit: error: The .NET Framework SDK needs to be installed before building extensions for Python.
 
Where should I install the .NET Framework?
 
Bye
DeVill
 
P.S.: sorry for the previous empty E-mail... my client mesd things up a bit :-*