Saturday, April 9, 2011

How to run Citrix ICA using Internet Explorer (IE) 9

Microsoft has just recently launched the Internet Explorer 9.0 browser. But there is a problem with after upgrading to Internet Explorer 9, users are unable to launch Citrix applications once authenticated into Web Interface. They are given a prompt to open launch.ica but the application launch never completes.

There are two steps to fix the problem:
1. Make sure you disable ActiveX filtering feature at Internet Explorer 9.0. To ActiveX filtering click on Gear icon, select Safety, de-select ActiveX Filtering. Or alternative this can be reached in the same way by pressing Alt key followed by Tools menu (ActiveX filtering is enabled if a “tick” appears next to it and is disabled it the “tick” disappears next to it).
2. Disable the MIME filter by renaming or deleting the following registry key: HKEY_CLASSES_ROOT\PROTOCOLS\Filter\application/x-ica

Voila, you should be able to Open the Citrix application. I've tested using my Citrix applications and it's worked!

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