Click the 'Start' button. Then click the Realsoft->SDK menu. You can see a number of 'CMD' entries there. Select the one corresponding to your Visual Studio version and the type of a build you want to compile. This opens CMD.EXE window and calls the scripts\install.bat script that will prepare the SDK for use.

You can now use the command prompt window to build any SDK sample or a Realsoft 3D plugin. To make sure the SDK works, enter the following commands:

If you see no errors, everything worked and there should be a new plugin library in the plugins folder of Realsoft 3D. To make sure the plugin really works, start Realsoft 3D. You should see a dialog saying 'Dummy plug-in works!'.