When you are installing Windows 95, you may receive the following error
Setup detected one or more MS-DOS-based programs running on your
computer. Close your MS-DOS programs, and then click OK to continue.
Or, click Cancel to quit Setup.
Setup cannot continue while an MS-DOS-based program is running. The
MS-DOS-based program may be running in a hidden virtual machine so that
it is not visible when you press ALT+TAB or in the Close Program dialog
NOTE: Windows 95 supports running MS-DOS-based programs in hidden virtual
machines (VMs). Hidden VMs do not display program windows or show up as
running programs. Hidden VMs are created by the developer of a program.
To work around this problem, use any one of the following methods:
- Press ALT+TAB to cycle through the running programs and close the
- Press CTRL+ALT+DEL to open the Close Program dialog box and close
the MS-DOS-based program.
- Cancel Setup. Remove the MS-DOS-based program from the Startup group
or from the Load= or Run= line in the WIN.INI file and then
The WinPrinter driver by LaserMaster is an example of an MS-DOS-based
program that runs in a hidden VM and is not visible when you press ALT+TAB
or CTRL+ALT+DEL. To disable WinPrinter, remove the WinPrinter icons from
the Startup group, restart the computer, and then run Windows 95 Setup
The third-party product discussed in this article is manufactured by a
vendor independent of Microsoft; we make no warranty, implied or other-
wise, regarding this product's performance or reliability.