Geetings, Adepters; We formerly used an old, VB version of a class in the Editor.exe reference called AclSingleUse to instantiate new epic instances. This class implements the IACL interface. The reason for the use of this class is that, from what we've been able to gather, it allows for the instantiation of multiple instances of the Arbortext Editor without each instance writing on the other ... or something like that. However, when referencing the same Editor.exe in C#, the AclSingleUse class does not appear. We have created our own class and implemented the IACL interface, but are not sure if this will work - it may not have the "single use" capabilities. Does anyone know anything about the use of this AclSingleUse? If so, is its functionality something we can duplicate even without the class itself?