============================================================================= AST RESEARCH, INC. TECHNICAL BULLETIN #0802 01-04-93 ============================================================================= POWER EXEC MODEM SOFTWARE AND EMM386.EXE PROBLEM: Communication software used for modems may experience problems on the Power Exec if EMM386.EXE is used along with the Card Configuration Utility (CCU.EXE) program, part number 910717-031 release 1.0. This currently occurs with all versions of EMM386. CAUSE: Both the EMM386 program and the CCU program load into memory at the same D000h memory location. CCU.EXE takes two 16KB memory windows; one at DC00h for PCMCIA common memory and one at D800h for attribute memory. Also CCU will establish a memory window at D000-D400h for network adapters which is documented in the Power Exec User's Guide, part number 001492-001. SYSTEMS AFFECTED: All Power Exec systems. SOLUTION: Exclude the D000h-DFFFh memory range in EMM386. This will prevent EMM386.EXE from using this memory range and allow the CCU program to use the memory range. For example; DEVICE=C:\EMM386.EXE X=D000-DFFF For more information on EMM386 and the exclude switch, please consult your MS-DOS manual. Make sure the appropriate files are backed up before modifying this statement. CAUTION: In no case will AST Research, Inc. be liable for damage to the system or loss of data caused by improper or faulty installation of this file.