How do i update Visual C++ 6.0

Hi all
as I was working on my latest work my VC 6. is not C99
this may be a silly question but how do i make VC6 C99.
Do I download a service pack or what ?

Thanx

No compiler is 100% standard complient......and especially not C99.

The newer version of VC++ is closer to the C++ standard.....(It had one of Bjarne's old boys in charge of design)...

I heard GCC is pretty good compliency wise

I am not sure if this work but if you change the file name from cpp to c the compilers sometimes adjust to be more C99 compliant.