I-PEX manufactures high-precision Micro-Coax, FPC, FFC, RF, and Board to Board commercial connector products. 5) PEX Has Proven Itself – If you check into the history of PEX, this stuff was used way back in the 30’s. It was primarily used in commercial construction and in the 2000’s it became standard for plumbers to replace copper piping with PEX piping. Gandalf's Win 10 PEx 64 Redstone 3 03 13 2018 Item Preview There Is No Preview Available For This Item Serva is a fast, full native C/C++ multi-threaded application that runs from Windows XP SP3 to Windows 10 including all the Server versions. See what Serva can do for you by reading its Application Notes starting here. tl;dr¶. PEX files are self-contained executable Python virtual environments. More specifically, they are carefully constructed zip files with a #!/usr/bin/env python and special __main__.py that allows you to interact with the PEX runtime.