To discover the physical path of a website from a standalone application you can do the following:
// If IIS7
// Add reference to Microsoft.Web.Administration in
// C:\windows\system32\inetsrv
using Microsoft.Web.Administration;
...
int iisNumber = 2;
using(ServerManager serverManager = new ServerManager())
{
var site = serverManager.Sites.Where(s => s.Id == iisNumber).Single();
var applicationRoot =
site.Applications.Where(a => a.Path == "/").Single();
var virtualRoot =
applicationRoot.VirtualDirectories.Where(v => v.Path == "/").Single();
Console.WriteLine(virtualRoot.PhysicalPath);
}
If you're using IIS 6 (or the IIS6 admin compatibility layer for IIS7)
// If IIS6
// Add reference to System.DirectoryServices on .NET add ref tab
using System.DirectoryServices;
...
int iisNumber = 2;
string metabasePath = String.Format("IIS://Localhost/W3SVC/{0}/root", iisNumber);
using(DirectoryEntry de = new DirectoryEntry(metabasePath))
{
Console.WriteLine(de.Properties["Path"].Value);
}
Both these examples demonstrate how to discover the path to the root of a Web Site.
To discover the path to a virtual directory you need to amend the paths as necessary.