This Windows hosting guide will explain how to increase the maximum upload file size using Windows Hosting and IIS.
In IIS 7 on Windows 2008 Hosting, the web application will reject any file that is larger than 30 MB. You can increase the maximum file size by adding the following code to in the web.config file of your …
How to change ASP.NET version in IIS 7
1. Clich on Start Menu, Control Panel, Administrative Tools, Internet Information Services (IIS) Manager.
2. Click on Application Pools, and locate the application pool for your web site.
3. Right click on the application pool and click on Basic Settings.
4. Change the ASP.NET version from the drop down menu under .NET Framework Version.