How to display domain name and validate the password

Question

In the property I have given as SERVICEACCOUNT and Password as SERVICEPASSWORD but the domain name does not appear when the screen sequence somes.

<Control Height="10" Type="Text" Width="80"  X="10"  Y="75" Id="AccountLabel" 
         Text="Administrator Login" />
<Control Height="18" Type="Edit" Width="160" X="100" Y="75" Id="AccountTextbox"
         Text="{\DlgFont8}" Property="SERVICEACCOUNT"/>

<Control Height="10" Type="Text" Width="100" X="10"  Y="100" Id="PasswordLabel"
         TabSkip="no" Text="Administrator Password"/>
<Control Height="18" Type="Edit" Width="160" X="100" Y="100" Id="PasswordTextbox"
         TabSkip="no"  Property="SERVICEPASSWORD" Password="yes" />