XCOPY Date Switch Fails on 29th in Leap Year

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, 3.51
Microsoft Windows NT Server versions 3.5, 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.

Additional query words: XCOPY Date leap year 3.10 3.31 95

Keywords : NTSrvWkst ntutil
Version : 3.10 3.50 3.51
Platform : WINDOWS
Issue type :