Microsoft KB Archive/320694

= 16-Bit Programs May Not Update the Screen on Processors Faster Than 2.0 GHz =

Article ID: 320694

Article Last Modified on 2/1/2007

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APPLIES TO


 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows XP Professional
 * Microsoft Windows XP Home Edition

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This article was previously published under Q320694



SYMPTOMS
Some 16-bit programs such as Edit.com and Debug.exe do not update the screen in a timely fashion on computers with a clock speed over 2.0 GHz. If you move the mouse pointer over the window, you see an update occur.



CAUSE
The timer interval is calculated in a way that wraps for fast processors.



Service Pack Information
To resolve this problem, obtain the latest service pack for Microsoft Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

Hotfix Information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows 2000 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:   Date         Time   Version        Size     File name -  17-Apr-2002  19:57  5.0.2195.5589  396,560  Ntvdm.exe

Service pack information
To resolve this problem, obtain the latest service pack for Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

322389 How to Obtain the Latest Windows XP Service Pack

The English version of this fix should have the following file attributes or later:   Date         Time   Version      Size     File name ---  17-Apr-2002  17:25  5.1.2600.42  395,264  Ntvdm.exe



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Windows XP Only
This problem was first corrected in Windows XP Service Pack 1.

Windows 2000 Only
This problem was first corrected in Microsoft Windows 2000 Service Pack 4.

Additional query words: ms dos ms-dos DOS 2GHZ 16-bit Console window

Keywords: kbbug kbfix kbappcompatibility kbqfe kboswin2000fix kbwinxpsp1fix kbwin2ksp4fix kbhotfixserver KB320694

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