| EMM386--Notes |
|
| Installing the EMM386.EXE device driver |
|
| To use the EMM386 command, you must have an 80386 or higher processor, and |
| you must also install the EMM386.EXE device driver by using the DEVICE |
| command in your CONFIG.SYS file. If you try to use the EMM386 command on a |
| computer that does not have an 80386 or higher processor, MS-DOS displays |
| the following message: |
|
| EMM386 driver not installed |
|
| Reactivating EMM386 expanded-memory support |
|
| If EMM386 was loaded when MS-DOS started but is not currently in use, the ON |
| parameter reactivates expanded-memory support. |
|
| Suspending EMM386 expanded-memory support |
|
| If EMM386 expanded-memory support is currently active, handle 0 is the only |
| handle allocated, and EMM386 is not providing access to the upper memory |
| area. The OFF parameter suspends EMM386 expanded-memory support. When EMM386 |
| expanded-memory support is off, the EMM386.EXE device-driver header is |
| changed so that programs cannot use expanded memory. This enables you to run |
| non-VCPI-compliant programs such as Windows 3.0 in Standard mode. |
|
| Enabling and disabling Weitek coprocessor support |
|
| If the W=ON parameter is specified and the OFF parameter (different from the |
| W=OFF parameter) is not, EMM386 enables Weitek coprocessor support. The high |
| memory area (HMA) must be available to enable Weitek coprocessor support. If |
| you load MS-DOS into the HMA by specifying DOS=HIGH, you may not be able to |
| enable Weitek coprocessor support. |
|
| If you specify the W=ON or W=OFF parameter and no Weitek coprocessor is |
| installed in your computer system, MS-DOS displays the following error |
| message: |
|
| Weitek Coprocessor not installed |
|
|
