hi, We have a iis web application. Reports are part of the web application. In application in the menu, we can select reports and generate reports. So we can name the application as an olap and oltp application. We uses 2 application pools: one of is for reports and the other one is for oltp transactions. There is an iframe and reports are generated in this iframe. Web application's ip is like http:\ip1\webapp.aspx. So when you click on the reports in the menu, reports are opened in this iframe ( but the application pool and ip address of the report application is different) There is an export to excel button in main application. but because of the ip address and application pools are different, we can not export to excel. How can I solve the problem?