I have done alot of Serial I/O work using the MS Visual C++ tools. If you using MS C++ I can help. I acually use my C++ stuff to talk to a PIC based device!! go figure.... Alan Nickerson Rob Aerts wrote: > > hello everbody, > > my question is a little bit off topic (i gues) > but maybe somebody can point me to the right location (list or newsgroup) > > i have a made a program (c++) witch reads data from the serial port > a data device on com1 f.e. sends lots of data to my computer > the big problem in win95 is, while i'm receiving data, my program is blocked > (task switching) and when it receive's control, data is lost. > how can i solve this problem. i'm looking for some kind of blocking > procedure > to stop windows for task switching while my program receives data > > Kind Regards, > Rob Aerts