Shell Extension Viewer (Similar to htm previewer)

Wondering if anyone has previously done any custom shell extension previewers.  The bottom line is that I want to be able to display a bitmap (or graphic) which can be viewed from windows explorer in the thumbnails view.  Any pointers to sample code etc.  Thanks
dwinklerAsked:
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ShaunWildeCommented:
what you need to do is implement an object that supports the IPersistFile and the IExtractImage interfaces

see

http://msdn.microsoft.com/msdnmag/issues/0600/w2kui2/w2kui2.asp

I have just implemented one of these myself this morning for my own file type and it works a treat :)

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inprasCommented:
Hi
Check out UR MSDN help type Shell Extension sample U have a sample there
Hope this helps
inpras
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jkrCommented:
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dwinklerAuthor Commented:
Adjusted points from 300 to 350
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dwinklerAuthor Commented:
Looking for a more detailed answer...
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palmenlpCommented:
Can you please explain what happens when the interfaces is implemented,
the reasen i am asking is that i am doing the same but it dosent work.

i do get a call intto my ipersistfile:load function
but then what, should i do somthing here are just wait for call to extract of IExtractImage interface, which i never get

do you have a clue.
thanks
lars
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