Problem in executing SSIS Package through an asp.net c# application

Question

Hi, i am having a problem in executing the SSIS package through an asp.net application. i'm using c#. every time i run the package through web, i think the package is not disposed properly so until and unless i stop the application the package won't execute...i am not able to dispose or unload the package...

i'm geeting errors like

'WebDev.WebServer.EXE' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_32\CustomMarshalers\2.0.0.0__b03f5f7f11d50a3a\CustomMarshalers.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled. The result of the expression ""EXEC " + @[User::vRowData]" on property "SqlStatementSource" cannot be written to the property. The expression was evaluated, but cannot be set on the property. : Package Execution results: {0}

here is my code

Application app = new Application(); //Package package = app.LoadPackage("D:\ChipRewards_WorkingFolder\ChipRewards\Codebase\HeathPlan\Common\Trunk\SSIS Package\ETL_WorkFlow\ETL_WorkFlow\DataImport.dtsx", null); //package.ImportConfigurationFile("D:\ChipRewards_WorkingFolder\ChipRewards\Codebase\HeathPlan\Common\Trunk\SSIS Package\ETL_WorkFlow\ETL_WorkFlow\ETLConfig.dtsConfig");

        using (Package package = app.LoadPackage("D:\\ChipRewards_Test_Environment\\Test\\ETL_WorkFlow\\ETL_WorkFlow\\DataImport.dtsx", null, true)) 
        { 
            package.ImportConfigurationFile("D:\\ChipRewards_Test_Environment\\Test\\ETL_WorkFlow\\ETL_WorkFlow\\ETLConfig.dtsConfig"); 

            DTSExecResult result = package.Execute(); 

            if (result == Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure) 
            { 
                foreach (Microsoft.SqlServer.Dts.Runtime.DtsError local_DtsError in package.Errors) 
                { 

                    Debug.WriteLine("Package Execution results: {0}", local_DtsError.Description.ToString()); 
                } 
            } 
            package.Dispose(); 
        } 

i don't know what's happening...i would be very thankful if anyone could help me solve the problem...

Thanks, Antiflag