You need to setup remoting. You want to activate the middle tier object on a separate (remote) server, correct?

Here are a couple of articles to get you started:

http://msdn.microsoft.com/architecture/default.aspx?pull=/library/en-us/dndotnet/html/introremoting.asp

http://www.devarticles.com/art/1/196

>follow-up...
>
>The specific problem we're encountering seems to be a permissions issue. The actual error we're getting when the Web Service tries to call a middle-tier function on another machine is...
>
>The state of the failed permission was:
>> version="1"
> Read="\\WWPQ17922154241\m1\assem6.dll"/>
>
>I know that .NET has a new security model, but I don't know if that's at all related.
>
>Kevin

~Dave
Net Knowledge