Execute CodeUnit from External Application

Is is possible to execute a Code-Unit from an External Application written in VB or C++ or Delphi ? (The Database is currenly running on SQL Server.) here is my ASCII diagram: [My Code Unit]<–>[ SQL Server ]<–>[Applicatin Server]<–>[VB App] Is there a solution without the Navision Client being OPEN ? Can this be Done via the Application Server ? Thanking you…

This can ONLY be achieved through the Application Server. Please look around the forum for more info on the subject.