If you were referring to the Chinese Yinghuo-1 that hitched a ride on the Russian Fobos-Grunt...Having to work during the launch of the first Asian Mars probe...accomplished.
Well, to be fair there was another one but a) it was launched by someone else and b) it didn't go to Mars.
there was also the Japanese Nozomi probe, which reached Mars in 2003 but failed to enter orbit.
