This note is for users of OS/2 Warp who find that use of SCAN.EXE causes the THDPRO.EXE (or other) window to close without any apparent reason. After much investigation, I must admit I am unable to figure out "why" SCAN 2.?.? closes an OS/2 session. However, I have found, that for some unknown reason, I am able to stop it from doing so if I run "SCAN *.*". After running this in an OS/2 window, SCAN.EXE thereafter seems to work fine. In turn THDPRO.EXE has no difficulty running it without the window closing. If the window (or session) is closed and then opened again, you will need to run scan.exe in the newly opened window (session) in order prevent SCAN.EXE from closing it. This has proven to be the case on my system for both a VDM and a dos session. I cannot however guarantee it will work for everyone else.