Very Very Urgent:DCOM:Permission Denied

In my application we have a component which is remotely accessed by many client. And We achieved this using Remote Automation Manager Earlier. But now when i change to DCOM and execute the application in the client am getting an error
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|Permission Denied|
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Using DCOMCNFG Utility in the server system i have specified the Security details,in addion to the default as

Access Permission - Every one Allow Access
Launch Permission - Every one Allow Alunch
Default Confuguration Permission
Every on full control


What do i do?

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VMKRIH