InfoPath Dev

I have a problem with USER ROLES in InfoPath that explained it below :
The problem is that the conditions of button's and etc with user roles work correctly ONLY if the user open the form with a computer that is joint to domain .
So when the user open the form with a computer out of domain , user roles do not work correctly .
for example if u creat a condition on a button that is "if user roles is equal to X Disable this button" . ( X is a person in domain )
this work orrectly only when the users open the form with a computer joint to doamin . not a computer out of domian .
How can I solve this problem ?

I haven't worked with user roles a whole lot, but you might want to look into using our AD web service which might help you accomplish this.

http://www.qdabra.com/proddetail.asp?prod=QADWS

Thank you Matt .
Now A question !
IS there any difference between AD and
AD Web Service ??
if Yes , What is that ?

Hey Navid,

Yes, there is a difference. Active Directory, or AD, is a product created by Microsoft that runs on a Windows Server and is used to host a domain network where users can login with the same credentials to any computer connected to the network. I haven't worked with this product too much, but this the best way I can describe it.

The AD Web Service is a web service that simply allows you to access the current user's credentials that they have used to log on to the domain. This is made by us, Qdabra Software.

OK Matt .
I understand the difference .
Thanks a lot !