Access to Legacy Applications and Data

Step 3: Writing the Application

1. Write the client in a language that supports referencing of Automation objects, such as Visual Basic, Microsoft® Visual C++®, or Microsoft® Visual J++®.
2. Add the appropriate COMTI component library to the references list in the project and add the references of the component in the program.
3. Invoke methods as appropriate throughout the application.

If the existing mainframe transaction processing program needs to be modified, do one of the following:

• Perform the modification on the mainframe.
• Use a Windows-based COBOL development environment, such as Microfocus COBOL. Then move the code to the mainframe.

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