Microsoft KB Archive/59654

{|
 * width="100%"|

ALT+TAB Six-Second Delay in Real/Standard Modes

 * }

Q59654

-

The information in this article applies to:


 * Microsoft Windows versions 3.0, 3.0a

-

SYMPTOMS
If you are using a PS/2 Mouse Port style mouse, you may experience a five- to six-second delay switching between MS-DOS applications in real or standard mode in Microsoft Windows 3.0.

NOTE: This occurs not only on genuine PS/2 machines, but on any machine with a PS/2-style mouse port, such as the COMPAQ 386S and 20e.

CAUSE
This delay is caused by the presence of an MS-DOS mouse driver. The MS-DOS mouse driver reinitializes the mouse port with each ALT+TAB, thus causing the delay.

WORKAROUND
If you can do without a mouse driver for your MS-DOS applications, this increase task switching considerably on this type of machine.

MORE INFORMATION
The products included here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Additional query words: 3.00 3.0 3.0a 3.00a win30 3rdparty KBHW

Keywords :

Issue type :

Technology : kbWin3xSearch kbWin300 kbWin300a