Britain, Austria, Hungary, Russia, France, Prussia and the Ottoman Empire were the major players in the Vienna congress whereas U.S, France, Germany, and Britain were the major countries involved in Versailles peace process. Vienna congress was successful in restoring the balance of power in Europe whereas the Versailles treaty failed to achieve that. Both the treaties were aimed at rebuilding of the Europe after a frightening war.
One of the major differences between Vienna congress and the Versailles peace process was that Vienna congress was successful in arriving a compromise formula acceptable to both the parties whereas Versailles peace process failed to achieve such a consensus. Germans left with no other option and they succumbed to the pressure exerted by the opposite party. On the other hand, France got a better deal through the Vienna congress and managed to escape with less punishment. The negotiators of Vienna Congress did everything to regain the peace in Europe without sacrificing much of the interests of the France whereas the negotiators of Versailles peace process have done everything to humiliate the Germans.
The Versailles peace process was completely a one sided affair. Germans forced to accept the conditions set by the negotiators because of the lack of other options available for them at that time. This treaty was successful in destroying German economy (This treaty has taken away Germanys foreign possessions, along with any private or government property in them), which finally led to the Second World War. Moreover, Germans forced to liquidate much capital immediately in order to pay the war reparations of 33 billion gold marks, an amount which the Allies could increase whenever they saw fit (Valarauko)
Vienna treaty has achieved its objectives. It helped Europe from further conflicts. On the other hand, Versailles peace process failed to achieve its objectives. In