Hi, I have tedious a problem, probably at little of OT, but is happens during developing for PIC software/hardware. The my development environment is: A pentium 200 Mhz used to develop with MPLAB, connected in LAN NETBEUI with a slave PC as follow: PC 486 66 Mhz wirh 16 MB RAM DOS 6.22 WIN 3.11 LAN protocol NETBEUI NORTON COMMANDER 5.0 for DOS I use on this machine WIN 3.11 to stay connected to the LAN at the Pentium 200 PC, and use this old PC (it work perfecly) to send hex files to the target PIC. To copy the hex file between the Pentium to the 486 I have written a simple copy batch routine to avoid to rewrite the entire copy command. Using the NORTON COMMANDER to start the batch routine is very usefull, simple pressing enter to start the batch file, and more easy to view or edit files. Some times, apparently without any external cause, after the correct end of sending hex file to the PIC, when the NORTON should be restart, it take more than 20/30 seconds to restart. It happens about one time on every tree/four times. I have experimented that any batch routines started trougth NORTON COMMANDER sometimes take more time to restart. I have tested and experimented the same problem on another PC with WIN 3.11. Anyone have any idea about this noiouse restart delay?? Thanks for your time. Ciao Leonardo