Method checks for the java in the registry entries.

def CheckRegistryKey(javaKey):
		""" Method checks for the java in the registry entries. """
		from _winreg import ConnectRegistry, HKEY_LOCAL_MACHINE, OpenKey, QueryValueEx

		path = None
		try:
			aReg = ConnectRegistry(None, HKEY_LOCAL_MACHINE)
			rk = OpenKey(aReg, javaKey)
			for i in range(1024):
				currentVersion = QueryValueEx(rk, "CurrentVersion")
				if currentVersion != None:
					key = OpenKey(rk, currentVersion[0])
					if key != None:
						path = QueryValueEx(key, "JavaHome")
						return path[0]
		except Exception, err:
			# TODO: Add Warning/Error messages in Logger.
			WriteUcsWarning("Not able to access registry.")
			return None