Can the Microsoft Internet Explorer WebControls (Microsoft.Web.UI.WebControls) be used on your servers?

We do not have the Microsoft.Web.UI.WebControls assembly pre-installed on our servers. But you are free to use this assembly within your project. Simply upload the Microsoft.Web.UI.WebControls.dll to your /bin folder and then also make sure you have uploaded your version of the /webctrl_client folder.