Of course it isn't necessary, but if there's nothing you can do about
it, what choice do you have?

You mentioned the old version of the compiler will overwrite the PIC18
compiler?  You can just install one, move the directory and install the
other.  You can also make note of the PATH environment variable that
gets set by each installer and basically manually install them.  But I
doubt that will help any of the MPLab 6.2 integration.

It's a long shot but have you tried the MPLab 6 update files on
Hi-Tech's web site? They make it so the current versions of the compiler
work with MPLab 6, they might do something for you.

> I bought hi-tech c compiler older version about 2 years ago
> paid 850$ and received update one time after started working
> with 18 family pic I bought pic18 compiler for 550$ now new
> MPLAB 6.20 doesn't communicate with my older version 7,83
> complier Hi-tech wants 200$ to fix the problem by saying it
> is not their fault. If pic18 is install already and I want to
> install 7.83 older compiler it will overwrite on pic18
> compiler directory instead of creating separate directory.
> All of this I think should be taking care of with free of
> charge because I do not need any new device support all I
> need is use one MPLAB instead Of 2 mplabs for each compiler.
> I just need your opinion to find out if This 200$ charge is
> necessary or not?

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