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We have a silverlight application thats behind a ISA server, and the users have to authenticate against the ISA server.

In the silverlight application we uses Sharepoint 2007 as a documentlibrary (the backend uploads the documents).

When the user wants to open a document, we use a javascript, editDocumentWithProgID2, and HtmlPage.Window.Invoke(...) in silverlight.

The problem is that word/excel shows a new login dialog, so the users have to login again. Is there a way of avoiding this login dialog?

cheers Thomas

Jonas
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Mojito71
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  • I'm putting my money that you can't. This is how the Windows authentication works. I'm not certain though. – the_drow May 19 '11 at 14:06

1 Answers1

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Word/Excel act like a second "browser", you can't reuse the session. The only way to avoid double login is to save the file on the local drive and then open it with office.

elsni
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  • yes, but the problem is that the users is supposed to save the document back to the sharepoint document library... – Mojito71 May 19 '11 at 21:21