How do I register a file extension in the registry?

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.
lapuccaAsked:
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SteveH_UKCommented:
Have a look at the source code here: http://www.mentalis.org/soft/class.qpx?id=5
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Mihai StancescuSoftware Engineer Commented:
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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Mihai StancescuSoftware Engineer Commented:
Maybe this will explain my previous post:

http://msdn.microsoft.com/en-us/library/s3a0ddk6(VS.80).aspx


Regards,
Mishu
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