Where to get the legacy STM compiler?

I have to use Intel C/C++ STM Compiler (ICC), Prototype Edition 3.0 or 4.0 to build some legacy software.

However, it seems Intel no longer supports STM¹. But I find someone seems to get the legacy STM compiler².

1. https://software.intel.com/en-us/forums/intel-software-development-produ...

2. https://software.intel.com/en-us/forums/intel-software-development-produ...