TUGRUL GUCLU wrote: > Hello > > I'm developing a program to externally program PIC 18f458 from PC's parallel > port,using Visual Basic 6.0. Why ? Why not use any of the already available PIC programmers ? That would save you a lot of "problems"... Or is this going to be a *volume* product ? (Doesn't sound like that...) Jan-Erik. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads