Existing SQL Native Client Installation May Cause Setup to Fail

Goals and Symptoms

SQL Server 2005 installer gives the following error message during the installation and doesn't allow the user to complete ION Enterprise installation:
"An installation package for the product Microsoft SQL Native Client cannot be found. Try the installation again using a valid copy of the installation package 'Sqlncli.msi'."

Causes and Fixes

If there is an existing SQL instance prior to the installation of SQL Server 2005 Express, setup might fail and roll back with the following error message:
"An installation package for the product Microsoft SQL Native Client cannot be found. Try the installation again using a valid copy of the installation package 'Sqlncli.msi'."

To work around this problem, uninstall SQL Native Client by using Add or Remove Programs. On a cluster, uninstall SQL Native Client from all nodes. Then, run SQL Server Setup again.
For further information, please refer to the Microsoft Knowledbase article on the following link:
https://www.betaarchive.com/wiki/index.php/Microsoft_KB_Archive/910229
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Last Revised: February 18, 2008
Applies To: ION Enterprise 5.6, SQL Server Express
Public
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Legacy KB System (APS) Data: RESL191120 V1.0, Originally authored by KBAdPM on 02/19/2008, Last Edited by KBAdPM on 02/19/2008
Related ranges: ION Enterprise V5.6, Database for PowerLogic Software