These demos will work only on NT platform. SimVis and OWRTI-Donuts are DirectX based demos and OMBuilder uses Microsoft Excel and Visual Basic Macros. The RtiCapLib directory contains the RtiCap.dll file requried for the SimVis and OWRTI-Donuts demos. The original sources for the RtiCap libraries are present in the C++Lib subdirectory of OWRTI. Only the binaries are copied here. These demos also require onmniORB to be installed. There are seperate README files in the respective directories which describes how to run these demos.