winform appearance

Question

hello i am a java programmer,when develop the java winform,i can select different styles by modifying the "lookandfeel" attribute,but i found the c# language don't provide such function,all the applications written by c# have the same window style,but real world application,such as officexp and office2003,have the different appearance,why?how can i choose the winForm appearance of my app by using c#? thank you!!