Howdy. I am using a debian unstable based on knoppix. To answer one person:
rob@fearlesslaptop:~$ locate iostream.h
/usr/include/c++/3.2/backward/iostream.h
rob@fearlesslaptop:~$ find /usr/include/ -name iostream.h
/usr/include/c++/3.2/backward/iostream.h

To answer another I have been using both:
rob@fearlesslaptop:~$ gcc as1.h -o as1

g++ as1.h -a as1


Why would they change the header styles? And why would msft not change their
software with the time?