A Compensating Resource Manager (CRM) is any COM+ object that uses the CRM facility provided by COM+, a set of tools that make it simple to create a custom resource manager for business scenarios that require handling some non-database operation (such as generating a file) as part of a transaction. This article provides an overview of transaction processing, distributed transactions, and the two-phase commit protocol for transactions. Also covered are the implementation and configuration of a CRM.
MSDN Magazine March 2001
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