Using ALT+TAB with Attachmate Extra! (Windows 3.0) (58268)


The information in this article applies to:

  • Microsoft Windows 3.0
  • Microsoft Windows 3.0a
This article was previously published under Q58268
You cannot ALT+TAB out of an MS-DOS application that is performing constant network access, such as Attachmate "Extra!", under Microsoft Windows 3.0 standard or real modes.

Using ALT+TAB is not a problem in Windows 3.0 386 enhanced mode because in this mode, Windows can run MS-DOS applications in the background; thus, the constant network access may continue.

Extra! is constantly receiving datagram Network Control Blocks (NCBs) while it is loaded (even when run as a TSR). If you ALT+TAB out during its operation, Extra! freezes in the current mode and loses the connection.
Modification Type:MinorLast Reviewed:7/7/2005
Keywords:KB58268
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