When you have EPM enabled, your browser tabs are 64bit. If you want a 32bit tab, you need to put it into the Trusted Sites zone and disable protected mode for that Zone.
I just tried installing the x64button (open this page in 32bit IE) on Win7 64 with IE10 installed.
Pressing the button results in the page being opened in another 64-bit browser.
I have Enhanced Protected Mode enabled so that 99% of my browsing will be 64-bit, and I am searching for some solution to open a specific site in 32-bit IE while leaving EPM globally enabled.
Is there some configuration or setting where you've been able to make x64button actually create a 32-bit IE with IE 10 EPM enabled?
Note that launching ProgFilesX86 version of iexplore.exe does not result in a 32-bit browser with EPM enabled.
Thx.