While version 1.72 is not the "latest" build (newer experimental versions exist), it remains the most stable and widely recommended version for programming and 8051 series microcontrollers.
Disclaimer: This software is the property of its original author (Zhidong Wang/Atmel). This post is for archival and educational purposes only. Progisp 1.72 Software Free Download
[Current Date] Category: Embedded Tools / Legacy Software While version 1
ProgISP 1.72 Software Free Download: The Legacy Tool for AVR & C51 Programming Progisp 1.72 Software Free Download