Deploying .NET assembly – PB Docs 2021

When the PowerBuilder application is deployed, the system DLLs
such as PBDotNet.dll, PBDotNetFrameworkInvoker.dll, and
PBDotNetCoreInvoker.dll will be deployed automatically. However, you
will need to make sure the .NET DLLs as well as any dependent DLLs are
deployed in the same folder.

And also make sure the target machine have Universal CRT (C
Runtime) and the required .NET Framework or .NET Core installed in order
to run the .NET DLLs.