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Date: Mon, 25 Apr 2011 15:57:37 -0400
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Subject: Re: Trying to get author / title of a DOC file in VB2005
From: Steve Rindsberg <steve@rdpslides.com>
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> The retrieving and editing this information without automation has
> typically* been done via the OLE Compound document interfaces -
> IPropertyStorage and IPropertySetStorage.
> for example:
> "How To Read Compound Document Properties Directly with VC++"
> http://support.microsoft.com/kb/q186898/
> 
> Another way of doing this ...
> "The Dsofile.dll files lets you edit Office document properties when
> you do not have Office installed"
> http://support.microsoft.com/kb/q224351/
> 
> A little research online with those intefaces as keywords should
> produce several VB.Net examples (or more likely C# solutions which you
> can convert or employ directly within your VB.Net application.)
> 
> hth
> 
> -ralph
> [* there are also several schemes to mine this 'meta-information'
> directly from the binary file, but such 'hacks' are usually very
> fragile and always version dependent. Files stored in the new XML
> formats (eg. docx) can also be mined as you might any ASCII file.]

Or rather, the XML and other data in DOCX files can be mined once you extract 
them from the ZIP container.  All of the Office *.*X files are ZIP files.

I'm guesing that DSOFile doesn't know what to do with these.  Is that 
correct?