Problems using MS Windows communications programs

Last Updated: 5th December, 1994

Symptoms
MSWin communication programs get the message "COMx in use", even when no communications programs are using the port.

MSWin communication programs hang or drop the line unexpectedly.

Hardware
External modem (may not matter)

Problem
APAR PJ16160 There is a problem with the version of COMM.DRV provided in MSWin 3.11 and MSWin-for-Workgroups v3.11.

Fix
Try using a copy of COMM.DRV from MSWin 3.1 in place of the MSWin-for-Workgroups v3.11 driver. Success for this problem was reported using a COMM.DRV with a date of 03-10-92 and a size of  9280 bytes.