EXPERT RESPONSE
Microsoft KB article 327005, 0xC103FC93 error message occurs when you try to install Exchange 2000 Server on an existing Exchange Server 5.5 site, covers this exact situation.
The Microsoft article lists some of the primary causes of the 0xC103FC93 error you should consider troubleshooting when encountering this error.
I think you should pay close attention to this potential cause:
"DNS is not configured properly in Exchange Server. DNS may not be pointing to a DNS server that has a record for the Windows 2000 Active Directory directory service."
There are a couple additional causes listed, but I would always attempt to rule out any network and DNS issues first.
Do you have comments on this Ask the Expert Q&A? Let us know.
More on troubleshooting Microsoft Exchange setup errors:
Expert Advice: Error installing Exchange 2003 into an existing 5.5 site
Tip: Deciphering an 0xc103798a Exchange Server setup error code
Tip: 0xC103798A error when installing Exchange 2003 on Windows 2000
Tip: 0xC1037AE6 error when Exchange setup fails using /FORESTPREP
Reference Center: Exchange migration and deployment advice
|