ok. i figured why is wasn't working...RTFM. at least i don't get that error message anymore.
but now, after it starts revit, it causes the following windows crash;
Problem signature:
Problem Event Name: APPCRASH
Application Name: ad32lw_m.exe
Application Version: 2.1.0.0
Application Timestamp: 47ae8a98
Fault Module Name: MSVCR80.DLL
Fault Module Version: 8.0.50727.1434
Fault Module Timestamp: 4757746d
Exception Code: c0000005
Exception Offset: 000505a9
OS Version: 6.0.6001.2.1.0.256.1
Locale ID: 1033
Additional Information 1: ab0e
Additional Information 2: 66b3b9f94ba4d274188850b0316d94c1
Additional Information 3: 173a
Additional Information 4: 3aaa3013d86aab16060fdfdd59efeec2