{"id":431,"date":"2010-09-28T12:31:34","date_gmt":"2010-09-28T17:31:34","guid":{"rendered":"http:\/\/www.uv.mx\/personal\/gvera\/2010\/09\/28\/sharepoint-login-prompt-when-accessing-files-in-a-document-library\/"},"modified":"2013-01-14T14:30:45","modified_gmt":"2013-01-14T20:30:45","slug":"sharepoint-login-prompt-when-accessing-files-in-a-document-library","status":"publish","type":"post","link":"https:\/\/www.uv.mx\/personal\/gvera\/2010\/09\/28\/sharepoint-login-prompt-when-accessing-files-in-a-document-library\/","title":{"rendered":"SharePoint login prompt when accessing files in a Document Library Solution"},"content":{"rendered":"

\"image\"<\/a><\/p>\n

Espa\u00f1ol<\/a> | English<\/p>\n

UPDATED 29-SEP-2011: Fixed\u00a0for anonymous sites and IE. Really Works!<\/strong><\/span><\/h3>\n

Since long ago we faced a problem here at the University Of Veracruz, with some of the out-of-the-box funcionality in WSS, MOSS 2007 and SharePoint Server 2010.<\/p>\n

As we all know, in order to login in a non anonymous SharePoint Web Site, we have to provide our domain\/username credentials. That is ok if our site has not the \u201callow anonymous\u201d option enabled. But what happens when we click on an Office document (such as Word or Excel file) using Internet Explorer?<\/p>\n

Any time we try to open a file, we are again, prompted for the credentials. This happens even if the user was the creator of the file or the \u201callow anonymous\u201d option is enabled.<\/em><\/p>\n

What does Microsoft has to say about it?<\/p>\n

This is by design.<\/p><\/blockquote>\n

Some references of this problem from Microsoft’s Web sites:<\/p>\n

Multiple Logon while open office Document from SharePoint<\/strong>
\nhttp:\/\/blogs.technet.com\/b\/steve_chen\/archive\/2010\/06\/25\/multiple-logon-while-open-office-document-from-sharepoint.aspx<\/a><\/p>\n

Office: Authentication prompts when opening Microsoft Office documents<\/strong>
\nhttp:\/\/support.microsoft.com\/kb\/2019105<\/a><\/p>\n

How documents are opened from a Web site in Office 2003
\n<\/strong>http:\/\/support.microsoft.com\/kb\/838028<\/a><\/p>\n

Are you crazy?<\/p>\n

What is happening is that Office is trying to be so smart that needs to know who you are in order to provide some functionality for working with online documents inside the Office suite.<\/p>\n

– Me: That\u2019s fine, but at least give me the option to disable this behavior from SharePoint Administration.<\/p>\n

– Office-SharePoint: No. You cannot.<\/p>\n

Explanation of this behavior<\/h3>\n

Well, if you try to open an Office file directly from a remote place, Office wants to know who the hell you are. If the server responses with the<\/p>\n