I would actually appreciate so much if someone could help me to understand what is happening with these chips-the above described.

I have downloaded many free programmers from internet such as Pony-prog, IC-prog which use the parallel port to program by their ISP, but it has been unsuccessful. I have not programmed any of these micros.

I have a total of 8 chips and I do not think they are totally damaged.

How can I prove these chips are no good?.
Do not hesitate to say anything that coulb be useful

Best regards.
Omar