HelpPC 2.10	Quick Reference Utility	Copyright 1991 David Jurgens
int atexit( void func )        - prototype in stdlib.h        - func is defined as void (*func)(void)        - calls func() before exiting to DOS        - up to 32 functions can be called (if 32 atexit calls registered)        - should be located in main & executed before anything else        - returns 0 if OK, else nonzero if no space to register function
Esc or Alt-X to exit	atexit	Home/PgUp/PgDn/End ←↑↓→