I'm afraid that you are looking at the symptom, not the cause.
When W2K or XP encounter a serious error, they can handle it in various ways. It seems that you have your PC setup to write a minidump file and reboot. The minidump is the C:\WINDOWS\Minidump\Mini021603-01.dmp file - simply a minidump file written on 16th Feb 2003.
The dump file itself is not a user-friendly text file, and requires a large amount of programming background to interpret successfully.
The useful information is actually held in the blue screen that flashes up (too quickly for you).
If you go to right-click My Computer, choose Properties > Advanced > Startup & Recovery > Settings, then untick the 'Automatically Restart' box, and change the value for 'Time to display recovery options' to 30 seconds, you will be able to make a note of the error message on the blue screen.
Make a note of this error message (in full) and post it back - I'm sure we will be able to help then.