This setting controls whether double space (or drive space) is loaded into high memory. If you are having compatibility problems with software that makes assumptions about the available memory try changing this setting.

A setting of 0 does not let Windows 95 load COMMAND.COM or DRVSPACE.BIN/DBLSPACE.BIN at the top of 640K.

Change the attributes for MSDOS.SYS so it is not 'Read Only', MSDOS.SYS is found in the root directory of your C:\ drive. Open the file using Notepad or another text editor (not Microsoft Word or any word processor).

Add a new line with the following text 'LoadTop=0' to load the compression driver into low memory.

Changes will take place on the next reboot.

Disclaimer: Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.