MTS Server or VB programming error??

[Wokawidget]

Am running a DLL on an MTS Server...
Have 2 Class Modules...
In the 1st we have:

Private colExclude As Collection
 
Public Property Get Exclude() As Collection
   Set Exclude = colExclude
End Sub

In the 2nd Module we have:

Public Sub AddProcedure(ByVal Text As String)
Dim clsNew   As New ClassModule1
   clsNew.Exclude.Add Text 'This is the line the error occurs.
 
'...Blah, Blah, Blah...rest of code...

We get an Error 70: Permission Denied on the line above...
If we log in as administrator this works fine, but when logged in as anyone else this line of code crashes.
Both class modules are set up to run as MultiUse.....?????

Any Ideas???