// GetDistributionGroup()
 // desc: Method calls PowerShellComponent command GetDistributionGroup, returns list of DistributionGroup/DistributionGroups
 // params: string identity  - Distribution group name, passed in by ExchSvc
 //         int current_page - Page to return
 //         int per_page     - Number of entries to return per page
 // method: public
 // return: string, XML string of DistributionGroup object
 public static string GetDistributionGroup(string identity, int current_page, int per_page, string ou)
 {
     string result;
     PowerShellComponent.ManagementCommands objManage = new PowerShellComponent.ManagementCommands();
     result = objManage.GetDistributionGroup(identity, current_page, per_page, ou);
     objManage = null;
     return result;
 }