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This entry is used to select whether the DOS kernel should be loaded into the high memory area and whether DOS should use the upper memory blocks.

note:
The DOS entry is also available from the settings notebook of any DOS or Windows application.

DOS=HMA, UMB

Default settings:

• DOS=LOW, NOUMB

Parameters:

• HMA can be LOW or HIGH .
  This parameter is for the kernel load area.

• UMB can be UMB or NOUMB .
  This parameter is for the upper memory blocks.

Platform Support:

OS/2 2.x	OS/2 3.0	OS/2 4.0
Yes	Yes	Yes