Hi, I'm trying to migrate from Server Express to Visual Cobol, both on Redhat Linux.

I noticed a Document that contains [Differences between Visual COBOL and Server Express]

and it shows [COM Interop] is one of the points.

[COM Interop] means [The tools to help create COM objects are not supplied with Visual COBOL],

so I think if there's no [COM Objects] used in my Project, I don't need to change any source code.

But I don't know what [COM Objects] is or how to use it.

According to my research, seems [INVOKE] statement can used for [COM Objects],

Is that means if no [INVOKE] in my source code, then no [COM Objects] used ?

Thanks

COM, (Component Object Model) is a Microsoft technology that is available under Windows. It is supported in Net Express and in the Windows versions of Visual COBOL. It is not supported in Server Express nor in Visual COBOL for Linux. It is implemented in the Wiindows products thru a set of OO classes that are called via invoke statement. If you have no invoke statements in your programs or if you are moving from Server Express then you are most likely not using COM.