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Have a look at the source code here: <a href="http://www.mentalis.org/soft/class.qpx?id=5" rel="ugc">http://www.mentalis.org/soft/class.qpx?id=5</a>
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Have a look at the source code here: http://www.mentalis.org/soft/class.qpx?id=5 [http://www.mentalis.org/soft/class.qpx?id=5]

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But MSI installation in visual studio 2005 and 2008 offers a File Type Editor, that does just what you need, but it's done by the setup, so you don't need a dll and a custom action.<br />
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Hope this helps!<br />
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Regards,<br />
Mishu
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But MSI installation in visual studio 2005 and 2008 offers a File Type Editor, that does just what you need, but it's done by the setup, so you don't need a dll and a custom action.


Hope this helps!

Regards,
Mishu

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Hi, I have a C# Windows applicaiton that runs on Windows 2000 server or higher. &nbsp;Users saves a couple of text file in my applicaiton that I give it a special file extension. &nbsp;I would like to write a C# dll that would register this file extension (for example .abc) in the registry. &nbsp;I would then use this dll in MSI installation's customer Action to execute after installation is completed. &nbsp;Also, how do I indicate this file type to be &quot;NoOpen&quot; type unless it's done by my application using stream reader? &nbsp;Thank you.
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Hi, I have a C# Windows applicaiton that runs on Windows 2000 server or higher.  Users saves a couple of text file in my applicaiton that I give it a special file extension.  I would like to write a C# dll that would register this file extension (for example .abc) in the registry.  I would then use this dll in MSI installation's customer Action to execute after installation is completed.  Also, how do I indicate this file type to be "NoOpen" type unless it's done by my application using stream reader?  Thank you.

How do I register a file extension in the registry?

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).