Microsoft KB Archive/322049

= INFO: Explanation of the MDAC 2.6 sp2 Refresh Release =

Article ID: 322049

Article Last Modified on 5/17/2007

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APPLIES TO


 * Microsoft Data Access Components 2.6 Service Pack 2

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This article was previously published under Q322049



SUMMARY
MDAC 2.6 sp2 is a service release to MDAC 2.6 that originally was included with Microsoft SQL Server 2000 Service Pack 2. The MDAC 2.6 sp2 Refresh is an MDAC release available as a stand-alone download from the following Microsoft Web site:

MDAC Download Page

Although no code changes have been made to the components in the MDAC 2.6 sp2 Refresh from MDAC 2.6 sp2, the MDAC 2.6 sp2 Refresh contains changes to the way the builds are organized and versioned, which corrects existing issues with the MDAC 2.6 sp2 installation.



MORE INFORMATION
The MDAC 2.6 sp2 Refresh has been released primarily to address the issue that is described in the following Microsoft Knowledge Base article:

314755 BUG: Error When You Install MDAC 2.7 After MDAC 2.6 SP2

Because no coding changes have been made to any of the MDAC components from MDAC 2.6 sp2 to the MDAC 2.6 sp2 Refresh, a program that is tested against MDAC 2.6 sp2 should function and perform identically to a program that is tested against the MDAC 2.6 sp2 Refresh.

The primary change in the MDAC 2.6 sp2 Refresh is that the version numbers of most of the files that are included with MDAC have been updated. MDAC components are versioned in four parts, as follows:

[major version number].[minor version number].[build number].[revision]

For MDAC 2.6 sp2, the major version number is 2 and the minor version number is 62. These numbers are the same in the MDAC 2.6 sp2 Refresh. However, the build number for most files is now 7400, and the revision number is 0. Therefore, most of the files in the MDAC 2.6 sp2 Refresh have the following full versioning:

2.62.7400.1.

The files that are affected by these changes are those that are made up of the MDAC core as follows:
 * Open Database Connectivity (ODBC)
 * OLE DB
 * ActiveX Data Objects (ADO)
 * All Microsoft SQL Server interfaces, including the following:
 * Network libraries
 * ODBC driver
 * OLE DB provider

