Hi Joe, It's hard to think of the differences between the two, but this might help: http://mspress.microsoft.com/prod/books/sampchap/4068.htm#108 As far serial/parallel communications, yes it's possible with LE. You'll need a DLL from www.lvr.com. Regards, Tim Hamel In a message dated 7/1/00 9:24:32 PM Pacific Daylight Time, joeh100@CROSSWINDS.NET writes: > I'm thinking about buying visual-basic learning edition. What are the > limits to the learning edition and the advantages to the professional > edition? Will I still be able to do serial & parallel communications? > > Thanks, > > Joe >