compile c++ code in uVision3?

Hello all,
I am trying to compile c++ code in Keil uVison3. Saving a file as .cpp causes all color formatting to dissappear, and code will not compile. There is no option to save as a cpp file either, i have to do it manually. there is an option that associates cpp file as c++ source, but .c++ extensions are not found in the file extension lists when i open or save a file. (i have to select *.* when i want to see the .cpp file)

I read another post that says saving as .cpp should be all that is needed. What gives? I need to be able to write classes, and this can not be done in c.