Microsoft KB Archive/185853

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{| The information in this article applies to:
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 * Microsoft Exchange Server, version 5.5

SYMPTOMS
You may not be able to install Microsoft Exchange Server 5.5 on a network where clustering is provided by products other than Microsoft Windows NT Server and Microsoft Cluster Server.

CAUSE
The Exchange Server 5.5 Setup and Performance Optimizer programs only recognize storage devices that have a resource type of "physical disk." The dynamic-link libraries (DLLs) that are included with most third-party clustering products do not identify the storage device as having a resource type of "physical disk."

STATUS
Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.5. This problem has been corrected in the latest U.S. service pack for Microsoft Exchange Server version 5.5. For information on obtaining the service pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K
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Last reviewed: September 25, 1998

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