I'm working on a plug-in adding extra functionality to a document by
accessing extra information from URL a document was originally loaded.
Generally I see two possible solutions:
1. In ASP page when a document requested add extra information in a
document
2. When document is loaded check URL and use this URL to obtain extra
information and show it

1st approach looks a bit complicated for me because the added
information is quite dynamic and I do not want to spend every time for
modification an original document. To implement 2nd approach I have a
few problems probably somebody could help to solve.
- I didn't find in Acrobat API a call to figure out path of document
- Path is available if I add my replacement in HFT for
AVDocOpenFromFileWithParamsSEL or WWWOpenURLWithParamsSEL. However
AVDocOpenFromFileWithParams isn't called when a document loaded from
URL. But HFT entry WWWOpenURLWithParamsSEL is unreplaceable. Is there
any other solution? I do not want to write own Weblink driver. Can it
be a problem to access URL and load additional information in a
plug-in? Any other ideas?