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XCOPY Returns "Invalid Parameter" When Using Date Switch

This article was previously published under Q183656
SYMPTOMS
When you run the XCOPY command with certain dates using the /d:00-00-00switch, you may receive one of the following error messages:

Invalid parameter
-or-

Invalid number of parameters

For example, the dates, Oct 31, Dec 31, and Feb 29 (in leap year) arecorrect dates; however, XCOPY treats these dates as invalid.
CAUSE
Ulib.dll used by XCOPY interprets certain dates as invalid.
RESOLUTION
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack

STATUS
Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.
date format copying
Properties

Article ID: 183656 - Last Review: 11/01/2006 06:22:10 - Revision: 1.3

  • Microsoft Windows NT Server 4.0, Terminal Server Edition
  • Microsoft Windows NT Server 4.0 Standard Edition
  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows NT Server 4.0 Enterprise Edition
  • kbhotfixserver kbqfe kbbug kbfix KB183656
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