RE: Why authentication before opening a document in document libra

Here is the additional information:

1. Does this issue occur when accessing the companyweb site from intranet?
We go directly to the intranet site, it is not connected to our external
company web site.
2. Does this issue occur on all client computers?
No
3. Does this issue only occur on Windows Vista-based computers?
yes
4. What's the version of Office client program on the problematic computer?
Office 2007

"Alex Xie [MSFT]" wrote:

Hi Lem,

Thank you for posting here.

Based on my knowledge, this issue can be caused by the User Authentication
setting in Internet Explorer security zone. I suggest we perform the
following steps to resolve this issue.

Step 1: Add the SharePoint site to the trusted site
==============================
1. Open Internet Explorer > Tools > Internet Options
2. On the Security tab, click Trusted and click Sites
3. Add the URL of the SharePoint site to the trusted sites list.
4. Click the "Custom Level" button under Trusted security zone
5. Scroll down to the button and select "Automatically Logon with current
user name and password"
6. Click OK and restart Internet Explorer to check if the issue is resolved.

More information
--------------------
Internet Explorer May Prompt You for a Password
http://support.microsoft.com/?id=258063

Please check if the issue can be resolved. If the issue doesn't disappear,
please check the Authentication type of the IIS virtual server.

Step 2: Check Authentication type
======================
It is a known issue that the user will be prompted with login credentials
when accessing the SharePoint Explorer View or opening documents stored in
the SharePoint libraries. Therefore, please check the authentication type
of this web application.

1. Open the IIS Manager, and right click the IIS website on which the
SharePoint web application is hosted.
2. Point to Properties.
3. Click the Directory Security tab, and click the Edit button.
4. Ensure only Integrated Windows authentication is checked.

More information
-------------------
You are prompted to enter your user name and your password when you open an
Office document in SharePoint Server 2007, in SharePoint Portal Server
2003, or in Windows SharePoint Services
http://support.microsoft.com/kb/871155/en-us

If the above steps do not help in resolving this issue, I'd like to collect
the following information for further research.

1. Does this issue occur when accessing the companyweb site from intranet?
2. Does this issue occur on all client computers?
3. Does this issue only occur on Windows Vista-based computers?
4. What's the version of Office client program on the problematic computer?

If anything is unclear, please feel free to let me know. I'll be happy to
be of assistance.

Sincerely,
Alex Xie
Microsoft Online Support Professional
Microsoft Global Technical Support Center

Get Secure! - www.microsoft.com/security
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