Editing the OS/2 CONFIG.SYS File

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WARNING: Using the Registry Editor incorrectly can cause serious, system- wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of the Registry Editor can be solved. Use this tool at your own risk.

The Microsoft Windows NT "System Guide" states on page 322 that you must use an OS/2 text editor to change the OS/2 CONFIG.SYS file. An OS/2 editor can access a "dummy" copy of this file located at C:\CONFIG.SYS. However, if you access the OS/2 CONFIG.SYS entry in the Registry directly using the REGEDIT utility, then you will be able to invoke the online Multi-String editor to make needed changes. You can do this by selecting the value entry next to the entry for "CONFIG.SYS: REG_MULTI_SZ."

The following subkey entry in the Registry identifies the location of the OS/2 CONFIG.SYS information:

      HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft

     \OS/2 Subsystem for NT\1.0\config.sys
				

Microsoft recommends that you use a third-party text editor to edit the OS/2 CONFIG.SYS, but if you do not have such an editor availabe, you can use the online Multi-String editor in the Windows NT Registry.

For more information about OS/2 subsystem configuration files, query on the following words in the Microsoft Knowledge Base: