HELLO
I am getting an error saying cant find LX51.EXE. I searched in the keil folder there is no LX51.exe. How to fix the problem . I want to use it .
that means it cannot be done in evaluation version ?
Correct - LX51 is not included in the Evaluation download.
If this is a bona fide Evaluation of the tools - ie, with a genuine intent to purchase - then you should speak to Keil Sales or your local Distributor about this:
http://www.keil.com/company/contact.asp