[RESOLVED] Stacker 4.0 under Win98

Recently I blew a motherboard on my main machine and was forced to install Win98 on an older PCDOS 7.0 w Win3.1 system. This system has a Stacker 4.0 partition. Its documentation claims Win for Workgroups 3.11 32 bit file access compatiblity but the System performance screen says drive C: is running in Dos compatibility mode w/ real mode compression software. Bootlog.txt says it tried to load Vstacker.386 and failed. Added "Device=vstacker.386" to system.ini but no help. Suggestions?