Event ID - 143

Event Id143
SourceMSExchangeDX
DescriptionUnable to update the remote dirsync entry Req_name in directory service Exch_srv_name.
Event InformationAccording to Microsoft:
CAUSE:
The errors listed in the "Symptoms" section may occur when the Msvcrt.dll file has been updated to version 6.x or later.
WORKAROUND:
Replace the Msvcrt.dll file with the 5.00.0000.7303 default version that is included with Windows NT.
Reference LinksXFOR: Exchange Server 5.5 DXA Returns DS_E_BAD_ARGUMENT

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