memory, unless the USERAM= parameter is used. For example, to allow access to up to 256 MB EMS (or 256 MB XMS), specify: QEMM386.SYS USERAM=1M-256M For QEMM 7.04 and above, the maximum addressable RAM is 256 MB of memory, shared among XMS, EMS and VCPI memory. Initially, XMS allocates the entire 256 MB and shares it with EMS and VCPI as needed, that is, as EMS and VCPI request memory blocks, XMS free memory is reduced by that same amount. Optimize limit Versions up to QEMM 6.01 can process batch files up to 9KB, and 20KB in QEMM 6.02. Batch file line limit is 512 for QEMM versions up to 6.02. Stealth DoubleSpace/D*Space Stealth D*Space does not support Windows 95 or later versions of DriveSpace. Version history Originally, the product was called QEMM-386 (requiring an Intel 80386 and DOS 3.30.), and was released with a complementary product called QRAM (for use on intel 80286 and 8088). The 386 suffix was dropped starting with QEMM version 7.0 in 1993, when Intel released the Intel Pentium on March 22, 1993. The final release was re-branded as QEMM 97 to follow Microsoft's new branding trend of using year released instead of version numbers, specifically, Windows 95 and Windows 95 OSR2. QEMM-386 v4.2 (November 11, 1988) Supported Intel 80386 and DOS 3.30. Bundled with QRAM for 80286 or 8088/8086 computers. QEMM-386 v5.0 (January 1990) Added support for Intel 80486, DOS 4.01 and Windows 3.0. Maximum RAM is 16MB XMS/16MB EMS. LOADHI.SYS now loads 2 device drivers at a time. New QEMM parameters include COMPAQ386S (C386S). QEMM-386 v5.11 (mid 1990) Added support for Virtual DMA Services (VDS). Supported larger memory cache. QEMM-386 v6.0 (early 1991) Added support for DOS 5.00a and Windows 3.0a. Maximum RAM is 64MB XMS/64MB EMS. New features include Stealth. New utilities include HOOKRAM. LOADHI.SYS now loads 32 device drivers at a time. Manifest was updated to 1.10. QRAM updated to 2.02 for intel 80286 and intel 8088 systems. QEMM-386 v6.01 (mid 1991) QEMM supports loading XMS driver before QEMM, running Stealth in Windows 3.0 in 386 Enhanced mode. Optimize support indented CALL statements in batch files. Manifest was updated to 1.11. QEMM-386 v6.02 (November 13, 1991) Supports 2.88MB floppy drives. New Optimize switches include /COMMANDFILE (CMD), /LOADLOW (LOW), /QUICK (Q). Optimize supports default OPTIMIZE.EXC exclusion file. New QEMM parameters include DISKBUFFRAME=xx (DBF), EXCLUDESTEALTHINT=xx (XSTI), SHADOWRAM=xxx (SH), UNMAPFREEPAGES=Y/N (UFP), WINSHRINKUMBS=N (WSU). By