how to use namespace system in c++ builder xe?

i mistakenly unistalled visual studio from my system and now i am stuck with c++ builder xe, i have a code that uses members of namespace System, like String type etc. i ha开发者_如何学Cve tried to use the namespace by statement

using namespace System;

and

using namespace system;

but neither works. it gives no errors with the namespace but doesnot recogonize its members and declares String as an undefined symbol. i would like to know how can i use this namespace in my c++ builder xe?? thanks

Why don't you just re-install Visual Studio from your install CD's?