Add “Run in Separate Memory Space” check box to Run dialog box

Lets users run a 16-bit program in a dedicated (not shared) Virtual DOS Machine (VDM) process. All DOS and 16-bit programs run on Windows 2000 Professional and Windows XP Professional in the Windows Virtual DOS Machine program. VDM simulates a 16-bit environment complete with the DLLs required by 16-bit programs. By default all 16-bit programs run as threads in a single shared VDM process. As such they share the memory space allocated to the VDM process and cannot run simultaneously. Enabling this setting adds a check box to the Run dialog box giving users the option of running a 16-bit program in its own dedicated NTVDM process. The additional check box is enabled only when a user enters a 16-bit program in the Run dialog box.

Additional Information

  1. Registry path is:

    HKEY_CURRENT_USER -> Software -> Microsoft -> Windows -> CurrentVersion -> Policies -> Explorer # MemCheckBoxInRunDlg

  2. The Administrative Template path is:

    Start Menu and Taskbar


* Making mistakes while changing registry values can affect your system adversely. We recommend you to create a System Restore point before making registry manipulation. If you're new to Registry Editor, read this beginner's guide.
** To locate the registry and administrative template path, checkout beginner's guide.
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