Is this feature of ASP.net application supported? Configuring an ASP.NET 4 Application to Auto-Start To use the ASP.NET 4 auto-start feature, you first configure the IIS “application pool” worker process that the application runs within to automatically startup when the web-server first loads. You can do this by opening up the IIS 7.5 applicationHost.config file (C:\Windows\System32\inetsrv\config\applicationHost.config) and by adding a startMode=”AlwaysRunning” attribute to the appropriate <applicationPools> entry: <applicationPools> <add name="MyAppWorkerProcess" managedRuntimeVersion="v4.0" startMode="AlwaysRunning" /> </applicationPools>