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Communication between a Client application and a AS/400 legacy application

How can I have a Client application (written in Visual Basic) communicate with an AS/400 legacy (COBOL/400) application? I want the VB program to initiate the COBOL/400 program, pass some parameters to it, and then have the VB program receive some return parameters. Can you direct me to some reference materials/examples of such an implementation?

If you have Client-Access installed, there should be some sample VB programs in the C:Program FilesIBMClient Access SamplesOLE DBVisual Basic 4.0 and C:Program FilesIBMClient Access SamplesOLE DBVisual Basic 5.0 directories on your system.

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