I have made two Wisp628 based programmers (one is using EasyISP firmware and use Olin's picprog program. The other is using Wisp628 firmware andXwisp2). Both were working under Windows 98. Recently I have my computer upgraded to Windows XP professional and now both are not working. The error messages are copied here. What could be wrong here? Is it because I only has user right (not an administrator)? Xiaofan __________________________________________________ C:\Myprog\wisp628\XWISP>xwisp2w com2 read test.hex XWisp2 version 1.5.03 (Sep 06 2004, Open Watcom C 1.30) SendReceiveSlow read timeout Failed to activate Wbus device XWisp2 failed after 1.05 seconds, rc 23! C:\embedinc\com>pic_read -sio 2 -pic 12F629 -hex test.hex No response was received from the programmer. The programmer may be powered off or not connected to COM2. Error occurred on attempt to open a new use of the PICPRG library. *** Program aborted on error. *** ______________________________ -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist