The Quartus II 8.1 Web Edition provides a range of features that make it an ideal choice for FPGA design, including:

Quartus II 8.1 is a 32-bit application. On 64-bit Windows, it installs to C:\altera\81\ and runs via the WoW64 compatibility layer. Some USB-Blaster drivers may require manual installation on newer OSes.

This version is (no license file required for the Web Edition) and runs on older Windows operating systems.

Includes support for Mentor Graphics ModelSim-Altera Web Edition for VHDL/Verilog simulation. System Compatibility & Requirements