SAP Connector for Microsoft .NET 3.0 (NCo 3.0) allows developers to use BAPIs and remote-enabled function modules in any .NET application (inside-out).
Link: https://www.onedbsolutions.com/download/sapnco30dotnet40P_20-20007348 - 64BIT.zip
For further information access: https://support.sap.com/en/product/connectors/msnet.html