Determining if an error occured on a Shelled app

I am using CreateProcessA along with WaitForSingleObject to
run a process, hold the calling application, and resume when then generated process is finished. The shelled process is a scoring programming that could possible fail due to possible bad data in a database. I wish to, in the program that is calling this scoring application, find out when the scoring application fails so it can be rescheduled to run at a later time. How can I return the called processes generated errors or any value informing that the called process has errored in any way.

Thanks !!

You can use the getlasterror api to see the error that was accure in the windows os.

Code:

---

Declare Function GetLastError Lib "Kernel32" () As Long

---

-Kayoca Mortation