A stability problem has been found with the Async Console function of CA/400 for Windows 95/NT Version 3 Release 1 Modification level 2 (5763XD100). The most common symptom is the Console session locking up with an "X SYSTEM" at the bottom of the screen. PCSADLC.DLL as contained in this directory is a patch for this problem and is compatible with CA/400 PTF SF40828 and above. This patch will be included in CA/400 PTF SF43837. The following are instructions for activating the fix. 1) Ensure no PC5250 session is active on the PC (this includes display and printer sessions as well as Async Console sessions). 2) Locate module PCSADLC.DLL on the PC. By default, this module will reside in C:\Program Files\IBM\Client Access\Emulator 3) Rename the module to something other than the current name (i.e. PCSADLC.OLD). 4) Copy PCSADLC.DLL to location on the PC where the "old" version of PCSADLC.DLL resided. 5) Reboot the PC.