extern "advapi32" fn RegQueryValueExW(HKEY, LPCWSTR, ?*DWORD, ?*DWORD, ?*BYTE, ?*DWORD) callconv(WINAPI) LSTATUS
hKey: HKEY,
lpValueName: LPCWSTR,
lpReserved: ?*DWORD,
lpType: ?*DWORD,
lpData: ?*BYTE,
lpcbData: ?*DWORD,