Intermec PENKEY 6100 Programmer's Reference Manual page 52

Getting Started
Standard PC Function
FIXEMM.EXE: Fix for EMM386 Memory Management
ISRAMDRV.COM: Determine if RAM Drive Exists
MMBFLAG.COM: Set/Get ROM DOS Boot Flags
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Error Level
RESET.EXE: Reset the System
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1-30 PEN*KEY 6100 Computer Programmer's Reference Guide
6100 Command(s) Required to Perform Function
ISRAMDRV.COM
IF ERRORLEVEL 1 GOTO NoRamDrive
IF NOT ERRORLEVEL 1 GOTO RamDrivePresent
MMBFLAG.COM 0 (Drive A:)
MMBFLAG.COM 1 (Drive B:
MMBFLAG.COM 2 (Drive C:)
MMBFLAG.COM 3 (Drive D:)
MMBFLAG.COM Error Levels
Meaning
Table 1 8
SECTION 1