Close NinjaTrader: Ensure the application is completely shut down so no files are "in use."
Open File Explorer: Launch your Windows folder browser.
Navigate to the Path: Go to Documents\NinjaTrader 8\bin\Custom\
Paste the DLL: Move or copy your .dll file directly into this Custom folder.
Restart NinjaTrader: Open the program again; it will automatically detect and load the new library from that specific folder during the startup sequence.
