ILaunchURL in 64bit

Question

http://msdn.microsoft.com/en-us/library/aa767962(VS.85).aspx

Is there a way to launch 64bit IE by using IELaunchUrl? I have IELaunchUrl defined as

[DllImport("ieframe.dll", ExactSpelling = true, CharSet = CharSet.Unicode)] public static extern int IELaunchURL( String url, out PROCESS_INFORMATION pi, [In, MarshalAs(UnmanagedType.LPStruct)] IELAUNCHURLINFO2 pLaunchInfo);

And I see ieframe.dll in both windows\system32 and windows\syswow64 but they are both 32bit version.