Project Types 

We recommend using the SAP Connector Class project template for creating SAP .NET Connector projects as you can reuse the proxy code. It is also worth considering placing the SAP proxies in the global assembly cache if several applications are making use of them.

Alternatively you can add the SAP connector class directly to another type of project such as a Windows Form, ASP .NET web application or ASP.NET web service. With other project types you can generate the SAP proxy directly in the project or reference an existing SAP Connector Library. When you select an existing SAP connector library you have to verify that your project has a reference to the SAP .Connector library (sap.connector.dll).