Unable to create Website using powershell in window service - c#-4.0

Question

I Want to create a website in IIS using powershell script.I write this code in a window service.
protected override void OnStart(string[] args)
{
string sitename = "rajesh";
//To create a New site
//Powershell script
string script = "cd\\\n" + "import-Module WebAdministration \n" + "IIS:\n" + "New-item iis:\\Sites\\rajesh -PhysicalPath C:\\inetpub\\wwwroot\test -bindings #{Protocol='http';bindingInformation='*:8080:" + sitename + "'}" + "\n add-content C:\\Windows\\System32\\drivers\\etc\\Hosts '127.0.0.1 " + sitename + "'";
string s = RunScript(script);
}
private static string RunScript(string scriptText)
{
Runspace runspace = RunspaceFactory.CreateRunspace();
runspace.Open();
Pipeline pipeline = runspace.CreatePipeline();
pipeline.Commands.AddScript(scriptText);
pipeline.Commands.Add("Out-String");
Collection<PSObject> results = pipeline.Invoke();
runspace.Close();
StringBuilder stringBuilder = new StringBuilder();
foreach (PSObject obj in results)
{
stringBuilder.AppendLine(obj.ToString());
}
return stringBuilder.ToString();
}
But when i try to start this window service in services listing...It throws an error.. The services on locat computer start and stopped..... When i change the powershell script to Create a folder or some small task then this window service is working but when i try to create a website through this powershell..it throws an error and window service can't be started.This powershell script is working in powershell.But not in window service..

Answer 1

The error produced would be helpful.
Sitename isn't a variable either, is that atypo here or in the code?
You could try replacing the \n with ; as well, powershell doesn't use that as new line, though i guess the C# is.

Answer 2

There's a couple of things to note here and I think you maybe don't understand some aspects of Windows Services:
OnStart is not the place to be putting any kind of logic. This event is there so you can initialise the service. For example starting a background worker thread that would run the main logic of the service and respond to external requests. For example - starting a TCP listener or initialising .NET Remoting or WCF.
OnStart is only called once when the service starts.
OnStart must return within 30 seconds although your initialisation code can request additional time.
You're calling out to PowerShell and the WebAdministration add-in to create websites. Whilst this is doable, it's clunky, perhaps you should consider calling directly into the IIS7 Managed API's:
Microsoft.Web.Administration Namespace
Here's an example of creating a site using the managed API's:
using (ServerManager serverManager = new ServerManager())
{
Site site = serverManager.Sites.Add("My Web Site", "C:\\inetpub\\wwwroot\test", 80);
site.Bindings.Clear();
site.Bindings.Add("*:8080:", "http");
serverManager.CommitChanges();
}
It should also be noted that any configuration tasks performed on IIS require that the account doing this have elevated privileges i.e. be an Administrator or if it's a service run under the SYSTEM account.