Apple 7300, 4400 manual Editing the AUTOEXEC.BAT file, Setting the number of drive letters

Setting the number of drive letters

You can share folders and volumes with the PC by assigning them to PC drive letters. When you install your PC software, the statement LASTDRIVE=M is included in the CONFIG.SYS file. This allows you to view up to nine folders or volumes at once.

To change the number of drive letters, change your CONFIG.SYS file to include the following statement:

LASTDRIVE=x

where x is a letter between F and Z. (The PC reserves drive letters A through E.)

Each drive letter uses 100 bytes of PC memory.

Editing the AUTOEXEC.BAT file

Your AUTOEXEC.BAT file should include the following statements:

SET TEMP=C:\TMP

SET TMP=C:\TMP

PATH=C:\DOS

LOADHIGH C:\DOS\MSCDEX.EXE /D:CDDRVR /L:E

LOADHIGH C:\APPLE\APPLEPC

C:\DOS\SMARTDRV.EXE /X

The first two lines determine the location for temporary files used by DOS applications.

The LOADHIGH lines load Windows support and CD-ROM software into high memory. The letter “E” at the end of the MSCDEX.EXE line assigns the letter “E” to the CD-ROM drive. You can change it to any unused letter up to the limit specified in the LASTDRIVE line in your CONFIG.SYS file.

The SMARTDRV line creates a disk cache to speed up DOS disk operations. The /X option disables the write cache, which is the slower but safer option. For best CD-ROM performance, the line containing MSCDEX.EXE must come before the line containing SMARTDRV.EXE.

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