tansqrx 0 Report post Posted November 9, 2007 It looks like Yahoo! has yet to fix the bug in Messenger that causes the installer to fail when the machine is running DEP. This is an ongoing issue with Messenger 8 and is still an issue with Messenger 9 Beta. Below is the message that I sent to the Messenger Beta feedback page.“I see that the default installer still does not run with Windows Data Execution Prevention (DEP) enabled. This should be fixed so that the more security conscience of us are able to install Messenger without having to disable DEP, restart, install, re-enable DEP, and restart again. “ Share this post Link to post Share on other sites