Powerbuilder Application — Execution Error R0035

That is an interesting error message to see in a paper title! It immediately sounds like a postmortem or a forensic case study, rather than a traditional research paper.

Some PowerBuilder runtimes depend on older VC++ runtimes (e.g., VC++ 2005, 2008). Install all versions from Microsoft.

"System error: Error calling external object function %s at line %n."

If your application calls external DLLs (Windows API calls), R0035 occurs if the function signature in PowerBuilder does not match the actual DLL function, or if the DLL could not be loaded.