DOCUMENT:Q102060  06-AUG-1993  [W_NT]
TITLE   :Increasing the Performance of MS-DOS-Based Applications
PRODUCT :Windows NT
PROD/VER:3.10
OPER/SYS:WINDOWS
KEYWORDS:

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The information in this article applies to:

 - Microsoft Windows NT operating system, version 3.1
 - Microsoft Windows NT Advanced Server, version 3.1
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If you are not satisfied with the performance of your MS-DOS-based
applications on Windows NT, try the following:

 - If the application is in a window and the video display performance
   is slow, try full-screen mode.

 - Disable the Compatible Timer Hardware feature in the _DEFAULT.PIF or
   the application's program information file (PIF) under the
   NT-specific section of PIF Editor. Since this feature causes a
   decrease in performance, it should be used only if it is required to
   make an application to run with Windows NT.

 - If the application is in a window and seems to pause periodically,
   try disabling Idle Detection in the Advance section of that
   application's PIF.

 - If the MS-DOS-based application can be configured for printing,
   choose LPT1, LPT2 over parallel port. Most of the applications use
   Int17 to print when configured for LPT<x>. If you select parallel port
   mode, these applications print directly to printer ports. Parallel
   mode is significantly slower in Windows NT compared to Windows 3.1.

Additional reference words: 3.10
KBCategory:
KBSubCategory: winnt mdos

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