My application open IE browser and it is not compatible with IE11. I change the FEATURE_BROWSER_EMULATION 8000 for my application and user name and password entry text boxes are disappeared.

Please help me

Not sure. Make sure your HTML is valid and there aren't any security restrictions on the machine.

If you're on Windows 7 or later you can try the page in IE and use the F12 browser tools and use the emulation options to run the page under IE 8 mode and see if that works. Whatever works there should also work with browser emulation set.

To make sure you have the emulation enabled properly in the registry, you can check the user agent in the browser.

+++ Rick ---

Hi Rick,

I am opening a browser in my windows form and F12 is not working. As your document change the registry FEATURE_BROWSER_EMULATION TO 9999 and it opens the page and now I am getting "client side XSL transformation are not supported" message pop-up with OK button. Then I click ok spinning for ever.

Appreciate your help.

Like I said you need a recent version of Windows - IE 10 or 11 only support the browser tools which means Windows 7 or later. If you're on XP then you have IE 8 which is all that will run.

If your computer is too old, find one that is newer and run your page from there to check whether it would work.

+++ Rick ---