This article describes an update that is available for the Microsoft Host Integration Server 2010 service to enable Read access to large virtual storage access method (VSAM) key-sequenced dataset (KSDS) files that have variable-length records on the host.

Note Currently, the host file provider fails when it tries discriminated unions. The host file provider fails even when it tries discriminated unions to a KSDS file that has fixed-length records.

More Information

This update is included in Cumulative Update 1 for Host Integration Server 2010.

For more information about how to obtain this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:

2533330 Cumulative update package 1 for Host Integration Server 2010

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