Proteus 91 Full | Full 2021

: Analog Devices' free SPICE simulation software. Excellent for analog circuit simulation but lacks PCB layout and microcontroller simulation.

: Installs only for the current user, storing all data in the local AppData folder. This is ideal for restricted environments where the user lacks administrative rights. proteus 91 full full

Proteus 9 added:

Proteus 9.1 Full Version: The Ultimate Guide to the Next Era of PCB Design and Simulation : Analog Devices' free SPICE simulation software