Async Call Not working

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C#3.5

Async

The delegate that i have created

private delegate void SaveAudit(Dictionary<string, object> auditInfo);

The method that will invoke the main menthod method asynchronously

private void performAudit(string additionalInfo)
        {
            try
            {
                Dictionary<string, object> auditInfo = PrepareAuditInfo(additionalInfo);
                if (auditInfo != null)
                {
                    SaveAudit del = new SaveAudit(ProcessComponent.Data.ReportData.Audit);
                    del.BeginInvoke(auditInfo, null, null);
                }
            }
            catch (Exception ex) { ExceptionManager.Publish(ex); }
        }

This is the method that need to be invoked asynchronously

private void SaveAuditInfo(Dictionary<string, object> auditInfo)
        {
            try { ReportData.Audit(auditInfo); }
            catch (Exception ex)
            { ExceptionManager.Publish(ex); }

        }

the above code is working fine when i try to debug the application, but when i deploy it on the web server my asnyc asynchronous call is not saving the data in the database. Can any one tell me what is wrong in this code?

Appreciate ur help!!