Help!!

I am running MPLAB under WIN95.  I tried to create and run a pin stimulus
file.  When trying to open this  file WIN95 crashes with a general
protection fault in BC450RTL.DLL.  I  chopped my stimulus file down to
two lines:

STEP RB7
10 1


Yet, the problem remains.  If I change the word STEP to TIME, it does not
crash.  I do not have any sample pin stimulus files.

Is their supposed to be an end of file marker?
Are there any detailed app notes on the WEB?  (the MPLAB manual is very
sparse on the subject.)

Thanks for your help

 --- Steve