>>I'm using tcpServer and tcpClient classes in a VFP9 service that communicates over ports. I have another VFP8 application that has a complicated form written using @...SAY and @...GET. I need to be able to also use the same classes in this code if possible. Can this be done?
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>What is connection between tcpClient classes and form? You can use VFP9 classes in VFP8 as long as you don't use any VFP9 new features/properties/methods in the class.

I think I read that it could not be used directly in VFP8 for exactly that reason.