shahine.com/omar/

homepage | Send mail to the author(s) contact

yet another Microsoft blogger

# Wednesday, November 28, 2007

Credential Prompts on Vista with Sharepoint and Office

Since using Vista at Microsoft I've been victim to more credential prompts in the past year than I have in my life. It really drives me nuts and I had no idea why.

There are two kinds of prompts I see:

  1. credentials prompt from sharepoint when opening an office document (clicking a link to a word doc
  2. credentials prompt in Outlook when connecting to Exchange

Now in a domain controlled environment you should never see prompts at all unless you don't have access to a resource. Windows takes care of this via Single Signon etc.

Well FINALLY I see David Rasmussen posted an explanation of issue #1, with a link to the SharePoint team blog explaining the issue. Sadly our IT department had no clue about this when I would call them.

The issue is that you must have "Automatically Detect Settings" enabled in your proxy configuration in IE. The problem is that in Hotmail we use some custom proxy servers to communicate with our labs and you need to disable "Automatically Detect Settings" to get to work. I can't tell you how many times I go to that dammed dialog to configure proxy settings. The crazy thing about this behavior is that if you just hit cancel on the credential dialog the document would still open:

With Office 2007 running on Windows Vista, opening an Office document hosted on a SharePoint (i.e. WSS 3.0 or MOSS 2007) site results in a prompt for login credentials even if the user is already logged on with an account that has access to the document. Canceling the credential prompt may still (but not always) allow the document to open in read-only mode.

And of course if you wanted to edit the doc you were out of luck.

Issue #2 is related to some configuration issues in our DOMAIN environment that have been addressed, but nasty to track down. We all suffered a lot in the interim (entering credentials as many times as > 100 a day).

Another weirdo Vista problem solved. This is why I hate new Operating Systems. Too many regressions that are very hard to understand let alone get a fix.

 

Wednesday, November 28, 2007 11:30:50 PM (Pacific Standard Time, UTC-08:00)
Hey Omar - actually, you don't need to have 'automatically detect proxy' turned on.

Another solution is to use the MS online hotfix request form to ask for the hotfixes from kb941853 or kb941890 (depending on which better fits your situation). Just include the URL of this blog post and I'm sure whoever reviews the request will send along the hotfixes - no need to wait for your IT folks.

We don't use 'automatically detect proxy settings' either (we use a proxy.pac file instead) and the hotfix resolves this just fine.

It was driving me batty, too!

I'd also hypothesize that this hotfix is highly likely to make the cut for Vista SP1.
Thursday, November 29, 2007 11:03:01 AM (Pacific Standard Time, UTC-08:00)
Do you have any pointers on the fix for #2? We have this sometimes and I haven't tracked it down yet.
Saturday, December 01, 2007 6:51:12 AM (Pacific Standard Time, UTC-08:00)
Thanks! Both of these have been driving me batty. Any info you can share for #2 would be GREATLY appreciated.
Sam Charrington
Comments are closed.