How to Enable a 32-bit Application Pool in IIS 7 (Dedicated/VPS)
1. Once logged into your server, open IIS Manager. You can do this by clicking your Windows Start button and entering “inetmgr” into the search box. Then press enter.2. On the Connections pane, expand the server node and click “Application Pools.”
3. Right click on your application pool and select “Advanced Settings…”
4. Change “Enable 32-bit Application to True.”
5. Click “OK” to finish.