After deploying win7 at my edu institution, several faculty have complained that they are unable to open office documents (docx, pptx) directly from our online teaching website (webCT). When the users click on an office document --> open, (as opposed to save) a dialog box appears pointing to the URL path of the file and a "windows Security" window appears prompting for a username and password to connect to the site (https).
These dialogs appear underneath IE8. It is not very apparent to the frustrated end-users why the document won't open.
Furthermore, after entering any username/pw 3 times the authentication quits and the corresponding office app launches and loads the document (read-only). Cancelling the authentication prompt has the same result; it loads normally (read-only). This leads me to believe that there is no authentication taking place. The app is simply recognizing the path as an https and wants to be ready with a username/pw should you wish to edit.
I added the site to "trusted sites" and toggled "Enabled Integrated Windows Authentication"
Also, in internet Options --> Security --> Trusted Sites --> Custom Level, I tried all 4 bullets under "User Authentication--> Logon" to no avail.
The issue is not reproducible on winXP with IE8 nor in firefox: winXP or win7.
It feels as if the browser recognizes the file type and loads the associated Office application which tries to load the file straight from the webserver (https). Whereas before it loaded a cached copy, now its trying to 'check-out' the document almost as if it was on a sharepoint.
I'm looking for a way to bypass this "username/password" dialog so that the documents load normally (the way they used to before upgrading to win7) with an IE8 setting, registry edit, or something that I can add to group policy.
Thank you for your help,