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.. n addition to the primary character set specified for the hwcp parameter. Valid values for n are in the range 0 through 6. This value depends on your hardware. For EGA display adapters, the maximum value for n is 6; for LCD display adapters, the maximum value for n is 1.

m Specifies the number of subfonts the hardware supports for each code page. The default value is 2 if type is EGA, and 1 if type is LCD. DRVSPACE.SYS, DBLSPACE.SYS ========================== Determines the final memory location of DRVSPACE.BIN or DBLSPACE.BIN, the part of MS-DOS that provides access to your compressed drives. DxxSPACE.SYS loads the real-mode driver into upper memory blocks. This can save 60K of conventional memory when you run Windows 95 in real mode, and can save 100K or more if you use Microsoft Plus! for Windows. When you start your computer, Windows loads DRVSPACE.BIN or DBLSPACE.BIN along with other operating-system functions, before carrying out the commands in your CONFIG.SYS and AUTOEXEC.BAT files. DxxSPACE.BIN initially loads in conventional memory because it loads before device drivers that provide access to upper memory.

When you use DriveSpace or DoubleSpace to create a compressed drive on your computer, the program adds a command for DxxSPACE.SYS to your CONFIG.SYS file. In the following syntax, for DxxSPACE type the filename for the program you are using. Syntax DEVICE=[drive:][path]DxxSPACE.SYS /MOVE [/NOHMA] [/LOW] DEVICEHIGH=[drive:][path]DxxSPACE.SYS /MOVE [/NOHMA] [/LOW] Switches /MOVE Moves DxxSPACE.BIN to its final location in memory. Initially, DxxSPACE.BIN loads at the top of conventional memory. After Windows finishes carrying out the commands in the CONFIG.SYS file, it moves DxxSPACE.BIN to the bottom of conventional memory. When DxxSPACE.SYS is loaded by using the DEVICE command, it moves DxxSPACE.BIN from the top of conventional memory to the bottom.

This can be useful for avoiding conflicts with programs that are loaded from the CONFIG.SYS file and require access to the top of conventional memory. When DxxSPACE.SYS is loaded by using the DEVICEHIGH command, DxxSPACE.BIN moves to upper memory, if available. Moving DxxSPACE.BIN to upper memory makes more conventional memory available. /NOHMA Prevents DxxSPACE.SYS from moving a portion of DxxSPACE.BIN to the high memory area (HMA). If MS-DOS is loaded into the HMA, DxxSPACE.SYS moves a portion of DxxSPACE.BIN to the HMA (if there is enough room in the HMA).

Use this switch if you do not want DxxSPACE.BIN to use the HMA. /LOW Prevents DxxSPACE.SYS from loading at the top of conventional memory. Use this switch if you have an MS-DOS-based program that does not support DriveSpace or DoubleSpace at the top of conventional memory. Note that use of this switch will prevent Windows from reusing the memory occupied by DxxSPACE.sys. Parameter [drive:][path] Specifies the location of the DxxSPACE.SYS file. EGA.SYS ======= Saves and restores the display when the MS-DOS Shell Task Swapper is used with EGA monitors.

If you have an EGA monitor, you must install the EGA.SYS device driver before using Task Swapper. This device driver must be loaded by a DEVICE or DEVICEHIGH command in your CONFIG.SYS file. Syntax DEVICE=[drive:][path]EGA.SYS Parameters [drive:][path] Specifies the location of the EGA.SYS file. EMM386.EXE ========== Provides access to the upper memory area and uses extended memory to simulate expanded memory. This device driver must be loaded by a DEVICE command in your CONFIG.SYS file and can be used only on computers with an 80386 or higher processor. EMM386 uses extended memory to simulate expanded memory for programs that can use expanded memory. EMM386 also makes it possible to load programs and device drivers into upper memory blocks (UMBs). Syntax DEVICE=[drive:][path]EMM386.EXE [ON|OFF|AUTO] [memory] [MIN=size] [W=ON|W=OFF] [Mx|FRAME=address|/Pmmmm] [Pn=address] [X=mmmm-nnnn] [I=mmmm-nnnn] [B=address] [L=minXMS] [A=altregs] [H=handles] [D=nnn] [RAM=mmmm-nnnn] [NOEMS] [NOVCPI] [HIGHSCAN] [VERBOSE] [WIN=mmmm-nnnn] [NOHI] [ROM=mmmm-nnnn] [NOMOVEXBDA] [ALTBOOT] [NOBACKFILL] Parameters [drive:][path] Specifies the location of the EMM386.EXE file.

[ON|OFF|AUTO] Activates the EMM386 device driver (if set to ON), or suspends the EMM386 device driver (if set to OFF), or places the EMM386 device driver in auto mode (if set to AUTO). Auto mode enables expanded-memory support and upper memory block support only when a program calls for it. The default value is ON. Use the EMM386 command to change this value after EMM386 has started. memory Specifies the maximum amount of extended memory (in kilobytes) that you want EMM386 to provide as expanded/Virtual Control Program Interface (EMS/VCPI) memory.

This amount is in addition to the memory used for UMBs and EMM386 itself. Values for memory are in the range 64 through the lesser of either 32768 or the amount of extended memory available when EMM386 is loaded. The default value is the amount of free extended memory. If you specify the NOEMS switch, the default value is 0. EMM386 rounds the value down to the nearest multiple of 16.

Switches MIN=size Specifies the minimum amount of EMS/VCPI memory (in kilobytes) that EMM386 will provide, if that amount of memory is available. EMM386 reserves this amount of extended memory for use as EMS/VCPI memory when EMM386 is loaded by the DEVICE=EMM386.EXE command in your CONFIG.SYS file. EMM386 may be able to provide additional EMS/VCPI memory (up to the amount specified by the MEMORY parameter) if sufficient XMS memory is available when a program requests EMS/VCPI memory. Values are in the range 0 through the value specified by the MEMORY parameter. The default value is 256. If you specify the NOEMS switch, the default value is 0.

If the value of MIN is greater than the value of MEMORY, EMM386 uses the value specified by MIN. W=ON|W=OFF Enables or disables support for the Weitek co-processor. The default setting is W=OFF. Mx Specifies the address of the page frame. Valid values for x are in the range 1 through 14. The following list shows each value and its associated base address in hexadecimal format: 1 =* C000h 8 =* DC00h 2 =* C400h 9 =* E000h 3 =* C800h 10 =* 8000h 4 =* CC00h 11 =* 8400h 5 =* D000h 12 =* 8800h 6 =* D400h 13 =* 8C00h 7 =* D800h 14 =* 9000h Values in the range 10 through 14 should be used only on computers that have 512K of memory. FRAME=address Specifies the page-frame segment base directly. To specify a specific segment-base address for the page frame, use the FRAME switch, and specify the address you want.

Valid values for address are in the ranges 8000h through 9000h and C000h through E000h, in increments of 400h. To provide expanded memory and disable the page frame, you can specify FRAME=NONE; however, this may cause some programs that require expanded memory to work improperly. /Pmmmm Specifies the address of the page frame. Valid values for mmmm are in the ranges 8000h through 9000h and C000h through E000h, in increments of 400h. Pn=address Specifies the segment address of a specific page, where n is the number of the page you are specifying and address is the segment address you want.

Valid values for n are in the range 0 through 255. Valid values for address are in the ranges 8000h through 9C00h and C000h through EC00h, in increments of 400h. The addresses for pages 0 through 3 must be contiguous in order to maintain compatibility with version 3.2 of the Lotus/Intel/Microsoft Expanded Memory Specification (LIM EMS). If you use the Mx switch, the FRAME switch, or the /Pmmmm switch, you cannot specify the addresses for pages 0 through 3 for the /Pmmmm switch. X=mmmm-nnnn Prevents EMM386 from using a particular range of segment addresses for an EMS page or for UMBs.

Valid values for mmmm and nnnn are in the range A000h through FFFFh and are rounded down to the nearest 4-kilobyte boundary. The X switch takes precedence over the I switch if the two ranges overlap. I=mmmm-nnnn Specifies a range of segment addresses to be used (included) for an EMS page or for UMBs. Valid values for mmmm and nnnn are in the range A000h through FFFFh and are rounded down to the nearest 4-kilobyte boundary. The X switch takes precedence over the I switch if the two ranges overlap. B=address Specifies the lowest segment address available for EMS banking (swapping of 16KB pages).

Valid values are in the range 1000h through 4000h. The default value is 4000h. l=minXMS Ensures that the specified amount (in kilobytes) of extended memory will still be available after EMM386 is loaded. The default value is 0. A=altregs Specifies how many fast alternate register sets (used for multitasking) you want to allocate to EMM386. Valid values are in the range 0 through 254.

The default value is 7. Every alternate register set adds about 200 bytes to the size in memory of EMM386. H=handles Specifies how many handles EMM386 can use. Valid values are in the range 2 through 255. The default value is 64.

D=nnn Specifies how many kilobytes of memory should be reserved for buffered direct memory access (DMA). Discounting floppy disk DMA, this value should reflect the largest DMA transfer that will occur while EMM386 is active. Valid values for nnn are in the range 16 through 256. The default value is 32. RAM=mmmm-nnnn Specifies a range of segment addresses to be used for UMBs and also enables EMS support. If you do not specify a range, EMM386 uses all available adapter space to create UMBs and a page frame for EMS.

NOEMS Provides access to the upper memory area but prevents access to expanded memory. NOVCPI Disables support for VCPI programs. This switch must be used with the NOEMS switch. If you specify the NOVCPI switch without specifying the NOEMS switch, EMM386 does not disable VCPI support. If you specify both switches, EMM386 disregards the MEMORY parameter and the MIN switch.

Disabling support for VCPI programs reduces the amount of extended memory allocated. HIGHSCAN Specifies that EMM386 use an additional check to determine the availablity of upper memory for use as UMBs or EMS windows. On some computers, specifying this switch may have no effect or cause EMM386 to identify upper memory areas as available when they are not. As a result, your computer might stop responding. VERBOSE Directs EMM386 to display status and error messages while loading. By default, EMM386 displays messages only if it encounters an error condition. You can abbreviate VERBOSE as V.

(To display status messages without adding the VERBOSE switch, press and hold down the ALT key while EMM386 starts and loads.) WIN=mmmm-nnnn Reserves a specified range of segment addresses for Windows instead of for EMM386. Valid values for mmmm and nnnn are in the range A000h through FFFFh and are rounded down to the nearest 4-kilobyte boundary. The X switch takes precedence over the WIN switch if the two ranges overlap. The WIN switch takes precedence over the RAM, ROM, and I switches if their ranges overlap. [NOHI] Prevents EMM386 from loading into the upper memory area. Normally, a portion of EMM386 is loaded into upper memory. Specifying this switch decreases available conventional memory and increases the upper memory area available for UMBs.

[ROM=mmmm-nnnn] Specifies a range of segment addresses that EMM386 uses for shadow RAM–random-access memory used for read-only memory (ROM). Valid values for mmmm and nnnn are in the range A000h through FFFFh and are rounded down to the nearest 4-kilobyte boundary. Specifying this switch may speed up your system if it does not already hav Bibliography SETVER.EXE ========== Loads the MS-DOS version table into memory. This device driver must be loaded by a DEVICE or DEVICEHIGH command in your CONFIG.SYS file. SETVER.EXE loads into memory the MS-DOS version table, which lists names of programs and the number of the MS-DOS version with which each program is designed to run. Syntax DEVICE=[drive:][path]SETVER.EXE Parameters [drive:][path] Specifies the location of the SETVER.EXE file.

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