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IE Compatibility Mode Pop-up Issue
We are experiencing an issue with a website that must run in Internet Explorer Compatibility Mode. Performing different functions on the site causes a pop-up window. The pop-up is required to perform...
I'm sorry that I never came back to give an update. Microsoft Premier Support spent a lot of time helping me. We ran all sorts of trace tools and gathered logs. Unfortunately, my problem lies with the third-party application developer. Microsoft cannot see into the developer's ActiveX code, but they believe that it includes a window.focus command for both the application and its pop-up. They think that the two get in a race condition and the IE window is winning which hides the pop-up.
I had a similar issue with Cognos reports and IE mode. I was able to resolve it by going to Control panel - Internet Options - check turn on Pop-up Blocker and Settings select medium for blocking level and check Show notifications.
I hope that helps.