​.NET Loading Rules

All the .NET assemblies are Private assemblies and are installed under %AVEVA_DESIGN_EXE% (Assembly Base directory) or a subdirectory below. .NET loads private assemblies from the base directory of the application. If it can’t find the private assembly here it uses the applications configuration file called <module>.exe.config to see whether it contains any path hints. Path hints are stored in the <probing> element.