Hi jason,

I am using  interop.QBFC8.dll and trying to begin a session with Quickbooks.It works fine if i do it in the C#.net windows application but when i try the same with C#.net Webapplication it says "Could not start Quickbooks".the below is the code i am using both for windows and web application.Is it that we need to hanndle differently in webapplication.

QBSessionManager SessionManager = new QBSessionManager(); 
        IMsgSetRequest customerSet = SessionManager.CreateMsgSetRequest("US",8, 0);       
        //                  
        // Code to get list of customers here.        
        //
        ICustomerQuery customers = customerSet.AppendCustomerQueryRq();
        SessionManager.OpenConnection("", "QBWCIntegration");
        SessionManager.BeginSession("C:\Documents and Settings\All Users\Documents\Intuit\QuickBooks\Sample Company Files\QuickBooks 2009\sample_product-based business.QBW", ENOpenMode.omDontCare);        
        IMsgSetResponse Resp = SessionManager.DoRequests(customerSet);        
        Response.Write(Resp.ToXMLString());       
        SessionManager.EndSession();       
        SessionManager.CloseConnection();

Thanks in advance.