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PavanKumar1234
Level 3
‎Aug 27, 2013 10:16 AM

How to find if SQL Express is already installed or not using Install Script.

Hi,

I know how to install SQL Express 2012 using Custom Actions.

However, I want to do that only if SQL Express 2012 is not already installed.

How to know if SQL Express is already installed? Also, if installed, how to know which version is installed?

Thanks in advance.
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Shekar
Level 7
‎Aug 28, 2013 07:25 AM

You can use RegDB keys in installscript to find if SQL Express is installed on the target machine. The RegDBQueryKey function allows users to query a key for its subkeys and value names. You can search for regdb keys in help and you would find more information on this.

PavanKumar1234 wrote:
Hi,

I know how to install SQL Express 2012 using Custom Actions.

However, I want to do that only if SQL Express 2012 is not already installed.

How to know if SQL Express is already installed? Also, if installed, how to know which version is installed?

Thanks in advance.
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