.... I've done a few tests with my pipeline (SCALE-IK-RRA-SO) for my data, and results are the same as 2.0.1 (except now I get a Muscle xxx has 0. FiberLength. Aborting... error for all my muscles upon initialization of SO - Results are the same as 2.0.1 but I suppose this is doing some sort of error checking???) Installs on Windows Vista............................................. PASSED .. Compiles and detects plugins......................................... FAILED (see below: I tried to compile my exact MomArm plugin that compared different methods of calculating Moment Arms that worked with 2.0.1 and got the following error) 1>------ Build started: Project: Libraries - osimPlugin, Configuration: Release Win32 ------ 1>Compiling... 1>RegisterTypes_osimPlugin.cpp 1>c:\program files\opensim 2.0.2\sdk\include\simtk\include\SimTKcommon/internal/ThreadLocal.h(35) : fatal error C1083: Cannot open include file: 'pthread.h': No such file or directory 1>MomArm.cpp 1>c:\program files\opensim 2.0.2\sdk\include\simtk\include\SimTKcommon/internal/ThreadLocal.h(35) : fatal error C1083: Cannot open include file: 'pthread.h': No such file or directory 1>Generating Code... 1>Build log was saved at "file://c:\!PROJECT\OpenSim_Plugins\MomArmBuild202\osimPlugin.dir\Release\BuildLog.htm" 1>Libraries - osimPlugin - 2 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 2 up-to-date, 0 skipped ========== So I'm not sure if I need to change anything in my cpp and h files between 2.0.1 and 2.0.2. Same thing happens when I try to compile the example plugin in the sdk\examples folder. .. Tim