UrlDecode in C++

[Yifan]

Hi

I want to use UrlDecode() in C++. I have a Win32 Visual C++ (.NET) project
#using <mscorlib.dll
#using <System.dll
#using <System.Web.d ll

using namespace System
using namespace System::Web

void dummy(

...
path = UrlDecode(path)


When I build the project I got error: "fatal error C1190: managed targeted code requires '#using <mscorlib.dll >' and '/clr' option". But I already am using it. Could any one tell me what I am missing? Many Thanks

Yifan