How to detect IIS version using C#?
Solution 1:
Found the answer here: link text The fileVersion method dosesn't work on Windows 2008, the inetserv exe is somewhere else I guess.
public Version GetIisVersion()
{
using (RegistryKey componentsKey = Registry.LocalMachine.OpenSubKey(@"Software\Microsoft\InetStp", false))
{
if (componentsKey != null)
{
int majorVersion = (int)componentsKey.GetValue("MajorVersion", -1);
int minorVersion = (int)componentsKey.GetValue("MinorVersion", -1);
if (majorVersion != -1 && minorVersion != -1)
{
return new Version(majorVersion, minorVersion);
}
}
return new Version(0, 0);
}
}
I tested it, it works perfectly on Windows XP, 7 and 2008
Solution 2:
You can get this information from the SERVER_SOFTWARE
variable. It will return the following:
Microsoft-IIS/5.0 (Windows 2000)
Microsoft-IIS/5.1 (Windows XP)
Microsoft-IIS/6.0 (Windows 2003 Server)
etc.
If you're using ASP.NET, you can get this string via
Request.ServerVariables["SERVER_SOFTWARE"];
EDIT: It seems that you will have to query the registry to get this information. Take a look at this page to see how.
Solution 3:
This is how i do it.
FileVersionInfo verinfo = FileVersionInfo.GetVersionInfo(System.Environment.SystemDirectory + @"\inetsrv\inetinfo.exe");
//Tip... look at verinfo.MajorVersion.
Solution 4:
U can find it in the registry.
Up to IIS version 6 you can find it here:
HKLM\SYSTEM\CurrentControlSet\Services\W3SVC\Parameters
Since version 7 here:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\InetStp
MajorVersion MinorVersion
Solution 5:
Use System.Web.HttpRequest.ServerVariables("SERVER_SOFTWARE"). The return value is a string in the format name/version.