I recently became the proud owner of a PICSTART Plus programmer. It worked just
fine- most of the time. I could regularly program 16C64's but could never
program the C71's. Well, I sent a question concerning this problem to Microchip
and mean while I copied the latest version of BWCC.DLL to my Windows\system
subdirectory. This version of BWCC.DLL, as others of you have mentioned, cleaned
up all of my problems. So, Jim Simons from Microchip asked me to post his
response to my questions:


>      The issue with the BWCC.DLL is quite troublesome.  It usually involves
>      more than just copying the file into the Windows\System directory.
>      The best solution is to search your hard drive for every instance of
>      the file.  Next, delete all of the copies except for MPLAB's (it is
>      the latest version of this driver).  Finally copy BWCC.DLL from
>      MPLAB's directory to Windows\System directory.
>
>      The reason is that if any other program loads the driver before MPLAB,
>      and that driver is not the latest driver, windows will prevent the
>      file from loading twice and therefore MPLAB is forced to use the old
>      version which is now sitting resident in RAM.  Currently, it appears
>      that the new BWCC.DLL is 100% compatible with programs using an older
>      version of it.
>
>      Jim Simons
>      CAE


Incidently, I no longer get any General Protection Exceptions.

Scott