Snort 1.6.2.2 ported to Windows – This is a working port of Snort to Windows NT/2000/9x. Changes include interface names, filenames, and syslog changes. Source available here.
You can download it from the following link: https://packetstormsecurity.com/files/download/22505/snort-1.6.2.2-win32-static.zip
Source: https://packetstormsecurity.com/files/22505/snort-1.6.2.2-win32-static.zip.html