sudden xcopy login problems on all XP PCs

[Joey]

Today (1/6/04) we suddenly started receiving xcopy errors
on all of our XP clients. Currently we are using entirely
W2K servers in our domain. No changes have been made but
all of a sudden all the XP users are getting the same
error when they log on as xcopy attempts to work with
their login scripts.

The errors basically say 'Entry Point Not Found'
I'm baffled because nothing has changed on our network and
I can't seem to find anything related on the web anywhere.

Any ideas?

 

[Doug Knox MS-MVP]

Entry point errors refer to a DLL that is either out of date, or incompatible with the call being made to the DLL (function missing). The exact error message, including the DLL name and the calling program would be helpful.

 

[Star Fleet Admiral Q]

Windbg shows the following dll's are referenced in system32\xcopy.exe
ModLoad: 77f50000 77ff7000 ntdll.dll

ModLoad: 77e60000 77f46000 C:\WINDOWS\system32\kernel32.dll

ModLoad: 77c10000 77c63000 C:\WINDOWS\system32\msvcrt.dll

ModLoad: 77dd0000 77e5d000 C:\WINDOWS\system32\ADVAPI32.dll

ModLoad: 78000000 78086000 C:\WINDOWS\system32\RPCRT4.dll

ModLoad: 71fa0000 71fe4000 C:\WINDOWS\System32\ulib.dll

ModLoad: 77d40000 77dcc000 C:\WINDOWS\system32\USER32.dll

ModLoad: 77c70000 77cb0000 C:\WINDOWS\system32\GDI32.dll

ModLoad: 66dd0000 66de4000 C:\WINDOWS\System32\ifsutil.dll

ModLoad: 74ae0000 74ae7000 C:\WINDOWS\System32\CFGMGR32.dll

ModLoad: 76670000 76757000 C:\WINDOWS\System32\setupapi.DLL

 

[Drew Cooper [MSFT]]

Excellent info!

To explain the problem in a bit more detail . . . Binaries from one release
of the OS are not necessarily compatible with binaries from a different
release. Are all of the operations local? If so there's a binary
mismatch - one or more of the dlls in Star Fleet Admiral Q's mail or
xcopy.exe is/are from a different version of the OS (or possibly a different
service pack, less likely, though). Easiest way to hit this condition: copy
a version of xcopy.exe from Win2k to XP, then use it on the XP machine.