Run from the same environment as your application. 5.1 Fix PATH (Most Common) Add C:\Program Files\IBM\SQLLIB\bin to the system PATH (not user) and restart your application and any hosting process (IIS, Windows Service).
SetDllDirectory(@"C:\Program Files\IBM\SQLLIB\bin"); unable to load dll 39-db2app64.dll 39-
For enterprise environments, the most reliable fix remains: . Automated deployment tools like Ansible, Chef, or DSC can enforce this state across hundreds of servers. Run from the same environment as your application