ASYNC UNIT
   contants used
   procedures used
 FIDO UNIT
   contants used
   procedures used
 FOSL UNIT
   procedures used
 HDSN UNIT
   constants used
   procedures used
 SQSH UNIT
   constants used
   procedures used
 ZMOD UNIT
   constants used
   procedures used

 PutEMSI
 QuickBBS struct DOC
 RemoteAccess struct DOC