<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def mprotect(self, lpAddress, dwSize, flNewProtect):
 """ Set memory protection in the address space of the process. @see: U{http://msdn.microsoft.com/en-us/library/aa366899.aspx} @type lpAddress: int @param lpAddress: Address of memory to protect. @type dwSize: int @param dwSize: Number of bytes to protect. @type flNewProtect: int @param flNewProtect: New protect flags. @rtype: int @return: Old protect flags. @raise WindowsError: On error an exception is raised. """

        hProcess = self.get_handle(win32.PROCESS_VM_OPERATION)
        return win32.VirtualProtectEx(hProcess, lpAddress, dwSize, flNewProtect)