Full install of 8-bit Proton and Proton24
Download the full compiler and latest patches from here
The installer is for Windows 7 32-bit and 64-bit, as well as Windows XP 32-bit.
There should be no need to uninstall the previous compiler versions.
For a history of Fixes, Additions and Amendments see the What's new document that always accompanies a new update.
If required, USB key drivers for Win7 and WinXP can be found here:
Proton USB key driver for Windows 7 (32-bit)
Proton USB key driver for Windows 7 (64-bit)
Proton USB key driver for Windows XP (32-bit)
The Latest versions of Proton Compiler do NOT require USB drivers to be installed if you are using the NEW HID Key.