How do I get rid of authentication login dialog when opening MS Office docs from a WebDAV server? [closed]

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I have an IT Hit WebDAV server which is using Basic+SSL. Each time I open MS Office document the login dialog pops up. How do I make it to be displayed only during first access and not shown each next time?

Answer 1

Microsoft Office applications always ask for the authentication when used with Basic or Digest authentication. This is a Microsoft Office and Microsoft Mini-redirector limitation and there are no workaround in case your server is using Basic or Digest.

However, if you check "Remember my password" check-box it will still display the login dialog, but the user name and password will be already filled-in, so you just click "OK".

Here are some options to consider if you need to totally suppress login dialog with Microsoft Office:

• Use NTLM or Kerberos authentication. In case of NTLM or Kerberos MS Office asks for credentials only 1 time during first document access.
• Implement Office Forms Based Authentication Protocol (MS-OFBA).

• Implement Url-authentiation. Your urls will look like: http://webdavserver.com/[SessionID1234567890]/path/file.docx

  Make sure you do not include the session ID in query string, Microsoft Office will truncate it. You will have to put session ID somewhere in the path, as in the above example, which is not very convenient, when you need to mount a WebDAV folder in you file system, but still works in most cases.