XCOPY Date Switch Fails on 29th in Leap Year

 Last reviewed: September 16, 1996
Article ID: Q152349
The information in this article applies to:
  • Microsoft Windows NT operating system version 3.1
  • Microsoft Windows NT Advanced Server version 3.1
  • Microsoft Windows NT Workstation versions 3.5 and 3.51
  • Microsoft Windows NT Server versions 3.5 and 3.51

SYMPTOMS

If you specify a date of the 29th of any month in a leap year (using the /D:mm-29-yy switch), the XCOPY command fails with an incorrect parameter error.

WORKAROUND

To work around this problem, use one of the following methods:

  • Copy Xcopy32.exe from a Windows 95 computer and use it on your Windows NT computer instead of xcopy.exe.

-or-
  • Upgrade to Windows NT version 4.0

STATUS

Microsoft has confirmed this to be a problem in Windows NT version 3.51. This problem has been corrected in Windows NT 4.0.

KBCategory: kbenv
KBSubcategory: ntutil ntsrvwkst
Additional reference words: XCOPY Date leap year 3.10 3.50 3.31 95

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Last reviewed: September 16, 1996
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