Simtel Windows CDROM, Jun 1996.  Walnut Creek CDROM.
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 Dynamic Link Libraries
 path: \win3\dll 
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pbcwin21.zip PBCwin 2.1 tools for Windows programming (DLL)
vbrun100.zip DLL for programs written with Visual Basic 1
vbrun200.zip DLL for programs written with Visual Basic 2
vbrun300.zip DLL for programs written with Visual Basic 3