Download link for Keil uVison and Progisp tool with 8051 and AVR ISP Programmer drivers.

These tools are needed to program a 8051 AT89S52 Micro-Controller.
A one click download link is as follows.

1)Keil uVison - Code editing and building tool.
2)Progisp tool - Tool used for flashing the hex file to controller.   

Cheers!!!!
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