Had an interesting “problem” arise for an end user today. This user has been able to open and update InfoPath forms in the past without a problem. All of sudden today she was getting the message “The Form is Closed”. From past experience I know that this message is commonly seen when a user access SharePoint from a web browser other than Internet Explorer and then tried to open a form that is NOT browser-enabled (one that requires the InfoPath Client).
I checked the users browser version, settings (SharePoint is set as Local Intranet site). Made sure that the browser history was cleared, checked the login name/password, made sure pop-up blockers weren’t preventing the page from loading. All of the steps I normally do. Couldn’t get it to work. Called IT and they upgraded her from IE 8 to IE 9. Same issue.
Finally, I thought, let me look and see if there’s an add-on that’s got a pop-up blocker. To my surprise, what I found was that SharePoint Add-ons for IE were disabled. Enabling the Add-ons fixed the problem. It should be noted that we are running MOSS 2007 and Office 2010. My guess is the browser popped up a message suggesting turning off add-ons that were causing it to run slowly and the user click ok not realizing the impact.
I had never noticed this issue before and found it interesting.
Enabling the SharePoint Add-ons resolved the problem.