When you try to install or bring online a 32-bit resource
on a 64-bit server cluster, you may experience unexpected results.
Specifically, the resource may not come online, or it may constantly attempt to
failover to another node.
This behavior occurs because 64-bit processes cannot
directly load 32-bit DLLs. Therefore the Resource Monitor (64-bit process)
cannot directly load a 32-bit Cluster Resource DLL. Typically Cluster Resource
DLLs are directly loaded in the process space of the Resource Monitor, and this
means that only 64-bit DLLs can be loaded under the 64-bit Resource Monitor
Contact the vendor that created the program or cluster
resource to obtain an updated 64-bit version. Microsoft Exchange 5.5, Microsoft
Exchange 2000, Microsoft SQL 7.0 and Microsoft SQL 2000 use 32-bit cluster
resources and are not supported on 64-bit server clusters.
To help determine if a cluster resource is 32-bit or
64-bit, use the VFI utility that is included in the Windows Server 2003
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
Support for 32-bit programs on 64-bit server clusters is included in Windows Server 2003 Service Pack 1 and in x64-based versions of Windows Server 2003