basiclib.tar.Z (with demo !squares) library of basic wimproutines 
blib2.spk     basic library with linker; many features incl. WIMP support,
              heap management...
complex.bas   functions for complex arithmetic in basic 
menuutils.spk easy-to-use utility to create menus
eventshell    Directory; EventShell is a quite sophisticated BASIC 
              Library to help programming the WIMP. The rt versions
              of shelllib are compressed.