Not able to Call a webservice from VISTA
<p>We have a webservice deployed and calling it from Windows application, it is working for everbody except for 3 users who is using VISTA operating machine when they try to access the webservice from application they get the below error</p>

<p>"A Required prevelege is not held by the client"</p>

<p>however they are able to access the webservice ASMX URL directly from browser with their credentials.</p>

<p>Can anyone tell me to figure out this issue</p>
