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The 640 MEG Shareware Studio 2
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The 640 Meg Shareware Studio CD-ROM Volume II (Data Express)(1993).ISO
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driver
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umbdr522.zip
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FILE_ID.DIZ
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Text File
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1992-11-02
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444b
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11 lines
UMB_DRVR.SYS is a DOS 5.0 device driver that
will use the 'shadow ram' capability of the
memory controller portion of many chip sets
to: A) force all roms not specifically
excluded to be shadowed, and B) expand DOS
base memory beyond 640KB if possible, and C)
provide UMBs ( Upper Memory Blocks ) to DOS
for loading programs and device drivers into
upper memory while *NOT* using any memory
below 640K and remaining in *REAL* mode.