///<summary>Gets the service name for the currently running process. Throws if it cannot find a service.</summary>
public static string GetCurrentProcessServiceName()
{
int processId = Process.GetCurrentProcess().Id;
ODWmiService curService = ODWmiService.GetServices().FirstOrDefault(x => x.ProcessId == processId);
if (curService == null)
{
throw new Exception("Unable to find service name.");
}
return(curService.Name);
}
///<summary>Returns true if a service is currently installed with the specified service name.
///Optionally pass in the file info for the desired service and this method will also return true if there is a service utilizing the same
///executable.</summary>
public static bool HasService(string serviceName, FileInfo serviceFileInfo = null)
{
//Old way is to search the registry. This can tend to throw exceptions based on Windows user permissions, especially if runnong on a Domain Controller.
//Let's try it this way first so as not to break any back-compatibility.
try {
List <ServiceController> listServices = GetServices();
foreach (ServiceController service in listServices)
{
if (serviceName == service.ServiceName)
{
return(true);
}
if (serviceFileInfo == null)
{
continue;
}
RegistryKey hklm = Registry.LocalMachine;
hklm = hklm.OpenSubKey(@"System\CurrentControlSet\Services\" + service.ServiceName);
string installedServicePath = hklm.GetValue("ImagePath").ToString().Replace("\"", "");
if (installedServicePath.Contains(serviceFileInfo.FullName))
{
return(true);
}
}
return(false);
}
catch (Exception e) {
e.DoNothing();
}
//Querying the registry failed so let's try querying Window Management Interface (WMI).
//If this throws also then let it throw. It means we absolutely cannot determine that status of this service.
var asWmi = ODWmiService.GetServices();
if (asWmi.Any(x => string.Compare(x.Name, serviceName, true) == 0)) //Name match. Already exists.
{
return(true);
}
//Check the new path against all installed service paths. Typically installed service paths are encapsulated by \" \" so use Contains().
if (serviceFileInfo != null && asWmi.Any(x => x.PathName.ToLower().Contains(serviceFileInfo.FullName.ToLower()))) //Path match. Already exists.
{
return(true);
}
//Service does not exist.
return(false);
}
