Detect if Silverlight is installed from c#

Question

I am creating an MSI for installing my Silverlight OOB application. It should install Silverlight Plugin if it is not present, or the required version is not present.

So, how can I detect if Silverlight exists on my machine. If present how can I know which version is present.

My MSI is distributed, may not be downloaded from webpage, so I can't put any javascript and download the MSI package accordingly.

score 3 · Accepted Answer · edited May 23 '17 at 11:47

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You can use the registry. The following link shows the keys for 32 and 64 bit systems: How To Determine Silverlight version on x64 machines?

edited May 23 '17 at 11:47

Community

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answered Sep 07 '11 at 07:05

Stephan Bauer

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score 0 · Answer 2 · answered Sep 07 '11 at 07:01

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You could check for the CLSID in the registry. But I can't find anything official documenting what to expect in the registry.

This forum post has some details http://forums.silverlight.net/t/52103.aspx

answered Sep 07 '11 at 07:01

russau

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score 0 · Answer 3 · answered Sep 07 '11 at 07:14

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As already mentioned above, you could check the registry. Iss Silverlight is installed on the machine the following entry sould exist.

HKEY_LOCAL_MACHINE\Software\Microsoft\Silverlight

The attribute version contains the installed version.

answered Sep 07 '11 at 07:14

Jan Christian Selke

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Detect if Silverlight is installed from c#

3 Answers3