Hiya ITNinja,

Self healing via a File Extension. Does anyone have any good links to a guide on how to do this? Ive always avoided it in the past because it looked complicated - so I just used shortcut entry point or active setup in the end. But I would like to learn how to do this, for completeness in a package I guess.

Ive tried googleling, so far I have come up with great building materials, lol.

Any pointers would be great, along with any pit falls etc.

So far the best info I have found is

http://www.itninja.com/blog/view/a-general-approach-to-software-packaging-propagating-user-settings with a reference to the Extension Table.

Cheers, Riley.


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  • Hi
    I am the beginner of learning application packaging using wise packaging studio, so your faithfully please send the web links for application packaging and please send concepts of application packaging using wise packaging studio best links and PDF.
    Thank you.
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if extension is pointing to a KeyFile .. self healing will work 

.docx is using winword.exe which is a keyfile
so when you remove winword.exe and doubleclick the .docx file .. you will get a selfhealing


Answered 04/19/2013 by: jaybee96
Red Belt

  • Ahh, that was nice and easy (:

    How about a .ocx (active x) for IE then? Just to throw spanning in the works.
  • You misunderstand the relationship between OCXs and IE.

    They're not opened by IE in the same way that, say, a .TXT is opened by Notepad. They're opened at installation time to get at the OLE registration data and then, after that, the OS calls the relevant functions from the OCX on behalf of IE.
  • Yeah, I was thinking about that on the way home and realised that IE would handle it differently - so silly question on my behalf. But thanks on the OCX heads up, fills in some gaps I have on the OCX front.
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