VSTO 2005 SE works only for application-level add-ins. For document-level
customizations, you have to buy the full version of VSTO 2005 (the "first
edition"). There isn't a free download for that, because it's a full edition
of Visual Studio. There's more information about VSTO 2005 here:
http://msdn2.microsoft.com/en-us/vstudio/aa718673.aspx
Kathleen McGrath made a short video about the differences between VSTO 2005
and VSTO 2005 SE that you can watch here:
http://blogs.msdn.com/kathleen/archive/2007/01/09/vsto-for-mere-mortals-video-vs
to-2005-vs-vsto-2005-se.aspx

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Harry Miller
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> Hi,
>
[quoted text clipped - 4 lines]
> best regards
> Jan