Windows Server 2012 RDS / Web Access Customization

Hi Guys,

i try to customzie the Web Access Page with the Goal, that no Domain is needed to Login to Web Access. I already tried to add the following Syntax in "Login.aspx":

<label><input id="DomainUserName" name="DomainUserName" type="text" class="textInputField" runat="server" size="23" autocomplete="off" value=”DOMAIN FQDN\” />

I restarted the IIS Services but i have to type in the Domain Name anyway.