The AS/400 client applications, such as File Transfer, have APIs associated with them. Additionally, the Submit Remote Command is available as ActiveX controls.
Rumba consists of a family of ActiveX controls and Web-to-Host consists of both ActiveX controls and JavaBeans. You may use these ActiveX controls and JavaBeans to create new applications using languages such as Visual Basic, C++, and Java. Information and samples for using these components can be found on the Micro Focus Web site.