I have a VB6 application that I want to communicate with a WCF Windows Service that I have written which imports Security Certificates. The only function in the service takes two string arguments. I have been having a lot of difficulty getting the two programs to communicate however.
In VB.NET, it is easy, just make a reference to the service as you would a web service. In VB6, however, it is not so simple it seems. Searching only seems to pull up examples of how to WRITE a Windows service in VB6.
Anyone know how this is done?
The easyest way I have found to access a WCF service from VB6 is to create a .Net ComObject wrapper for the service client. Then in VB6 all your are doing is a create object and calling some methods on the object. All the WCF work takes place in the .Net com object.
来源：https://stackoverflow.com/questions/7615540/communicate-with-wcf-windows-service-in-vb6