Quincy Center for Technical Education
Computer Technology Department

Dos

Specifies that the MS-DOS subsystem is to maintain a link to the upper memory area (UMA) or is to load part of itself into the high memory area (HMA).

dos=high|low[,umb|,noumb]

dos=[high,|low,]umb|noumb

Parameters

high|low

Specifies whether the MS-DOS subsystem should attempt to load a part of itself into the HMA. Use the high parameter to enable the MS-DOS subsystem to load itself into the HMA. Use the low parameter to keep all of the MS-DOS subsystem in conventional memory. The default setting is low.

umb|noumb

Specifies whether the MS-DOS subsystem should maintain a link between conventional memory and the UMA. The umb parameter provides this link. The noumb parameter disconnects this link. The default setting is noumb.

For more information, click Devicehigh or Loadhigh in the Related Topics list.