To bootstrap VMake only a C compiler is required. make or MMS is recommended since quite a lot of files have to be built. If all sources of the required projects are available, the VMake boot script ``bvmake''/``bvmake.com'' (instead of ``vmake''/``vmake.com'') will automatically copy all source files to the bootstrap directory and compile an initial version of VMake. This version can be used until a regular version of VMake is installed. There is no difference in functionality between the bootstrap version and the installed version of VMake. The only difference between both executables may be the file size because the installed version may use a shared library version of the VBS and VLisp libraries.