If you have found the QuickBASIC Wizard's Libraries to be of use, you may
 also be interested in more general-purpose libraries.

 The Advanced BASIC Library is available for free from your local BBS.  I do
 not ask for any registration fee for ADVBAS.  The latest version,
 ADVBAS9A.ZIP, is available on many BBSes across the nation.  A new version,
 ADVBAS9B.ZIP, will be available in the near future.  The ADVBAS library is
 written entirely in assembly language and provides any version of QuickBASIC
 with a variety of new features.  Pop-up windows, advanced communications
 support, equipment detection, handy string routines, quick direct video
 control, and much more is provided by ADVBAS.

 An even more powerful set of utilities is the ProBas library and associated
 toolkits.  ProBas is the commercial version of the ADVBAS library.  It
 contains powerful pop-up routines, lightning-fast graphics support
 (including EGA and VGA sprites, windows, PC Paintbrush file handling),
 routines to read ARC and ZIP files, virtual screens, zippy sorting, EMS and
 extended memory handling, and hundreds of other capabilities.  Excellent
 printed documentation (two 500-page manuals: tutorial and reference) is
 provided.  Add-on toolkits provide b-tree file handling, menus (pop-up,
 pull-down, ring, etc), a complete set of telecommunications services
 (dialer, file transfers [Xmodem/Ymodem], script language, etc), HyperHelp
 online documentation, screen design, and just about everything else!

 ProBas is available from Hammerly Computer Services, Inc.  To obtain more
 information or to order, call 1-800-343-7484 (voice), or try their BBS at
 1-301-953-7738 (Maryland).