Setup Error Message: Error SU0358 (131663)

SYMPTOMS

When you are installing Windows 95, you may receive the following error message:

Error SU0358

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.

CAUSE

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 box.

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.

RESOLUTION

To work around this problem, use any one of the following methods:

Press ALT+TAB to cycle through the running programs and close the MS-DOS-based program.
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 restart Windows.

MORE INFORMATION

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 again.

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.