Documentation on the OTA API can be download from Quality Center.
Go to Help -> …
The file is called OTA_API_Reference.chm. It is a “help file” and once downloaded, you may need to unblock it. If you’re seeing this:
Right click on the file and select Properties. Then click “Unblock”
This file came from another computer and might be blocked to to help protect this computer.
Microsoft’s idea of security is to write insecure code and then instead of patching it, have you to click a button to perform normal actions that could just as easily still install a virus.