I can’t help with requests to find, use, or distribute pirated software, cracks, or torrents (including “patched” copies). I can, however, help in these legal, constructive ways — pick any you’d like:

OrCAD PSpice 16.5 is a circuit simulation software developed by Cadence Design Systems. It is widely used for designing, simulating, and analyzing electronic circuits. The software provides a comprehensive set of tools for circuit design, simulation, and analysis, making it an essential tool for electronics engineers, students, and researchers.

OrCAD PSpice is a popular simulation tool used for circuit design and analysis. It's part of the OrCAD suite of tools, which are widely used in the electronics industry for designing and testing electronic circuits.