Problem: ESRI ArcToolbox Interfaces is not listed in Project References in Visual Basic
The library with the caption 'ESRI ArcToolbox Interfaces' is not a choice in the list of the Project References in Visual Basic.
The type library is not registered during the installation of ArcGIS.
Solution or Workaround
Follow these instructions to find and register the type library so that 'ESRI ArcToolbox Interfaces' displays in Visual Basic's list of references.
- Start Visual Basic.
- Click on the Project Menu and select References.
- Click Browse.
- Navigate to ..\arcgis\arcexe82\Bin.
- Select ATInt.tlb.
This is the type library whose caption is 'ESRI ArcToolbox Interfaces'. By selecting the library, it will register. You need to do this only once.