How to Verify If a Windows Service Is Running

How can I verify if a Windows Service is running

I guess something like this would work:

Add System.ServiceProcess to your project references (It's on the .NET tab).

using System.ServiceProcess;

ServiceController sc = new ServiceController(SERVICENAME);

switch (sc.Status)
{
    case ServiceControllerStatus.Running:
        return "Running";
    case ServiceControllerStatus.Stopped:
        return "Stopped";
    case ServiceControllerStatus.Paused:
        return "Paused";
    case ServiceControllerStatus.StopPending:
        return "Stopping";
    case ServiceControllerStatus.StartPending:
        return "Starting";
    default:
        return "Status Changing";
}

Edit: There is also a method sc.WaitforStatus() that takes a desired status and a timeout, never used it but it may suit your needs.

Edit: Once you get the status, to get the status again you will need to call sc.Refresh() first.

Reference: ServiceController object in .NET.

How to check if a service is running via batch file and start it, if it is not running?

To check a service's state, use sc query <SERVICE_NAME>. For if blocks in batch files, check the documentation.

The following code will check the status of the service MyServiceName and start it if it is not running (the if block will be executed if the service is not running):

for /F "tokens=3 delims=: " %%H in ('sc query "MyServiceName" ^| findstr "        STATE"') do (
  if /I "%%H" NEQ "RUNNING" (
   REM Put your code you want to execute here
   REM For example, the following line
   net start "MyServiceName"
  )
)

Explanation of what it does:

1. Queries the properties of the service.
2. Looks for the line containing the text "STATE"
3. Tokenizes that line, and pulls out the 3rd token, which is the one containing the state of the service.
4. Tests the resulting state against the string "RUNNING"

As for your second question, the argument you will want to pass to net start is the service name, not the display name.

Is it possible to verify if a Windows Service is running from a different computer?

You can do this with WMI, this example works for me (Obviously comment out the Stop part)

How to test whether a service is running from the command line

sc query "ServiceName" | find "RUNNING"

Determine if a running Windows Service is functioning

Sending SERVICE_CONTROL_INTERROGATE with ControlService to the service should force the services control handler to process the event. If the service control handler thread is blocked this will fail.

Beyond that I don't know if there is a generic way to determine if a service is functioning correctly.

If you are looking at a specific known service, you might be able to try any TCP ports it is listening on or named pipes it creates. A web server should respond to a HEAD request for / for example.

Programmatically check if a windows service is running c#

Try looking into the ServiceController / Management object for the executable path. Then based the executable path determine whether the service is running.

How to get executable path : [1] [2] [3]

Borrowed from an answer above

ManagementClass mc = new ManagementClass("Win32_Service");
foreach(ManagementObject mo in mc.GetInstances())
{
    if(mo.GetPropertyValue("PathName").ToString().Trim('"') == "<your executable path>")
    {
        return mo.GetPropertyValue("Name").ToString(); // or return true;
    }
}

I haven't tested this, and a comment suggested PathName may return command line arguments as well, so you may need to write another method to separate the path from the arguments (I'm assuming it'll just be a split on the string), and pass PathName to it in If statement..

How do i know if my windows service is working?

Surely you can test it. All you need is

1. start up the service
2. observe that it triggers the expected call after 5 minutes
3. (observe that it triggers the expected call every 5 minutes for a couple more times)

You can test this manually, or (preferably) create/use an automated test harness which allows you to test repeatedly and reliably, as many times as you want. This is possible even using a simple batch file.

To detect that the timer works correctly, you can inspect its log file. It also helps of course if you make the called class method configurable instead of hardcoding it. So you can run your automated tests using a dummy worker class which does not flood your inbox :-)

To make it even more testable, you can extract the timing logic from your service class too, so that it becomes runnable from a regular application. Then you can test it even easier, even using a unit test framework such as NUnit. This allows you to do more thorough testing, using different timing intervals etc. And the service class itself becomes an almost empty shell whose only job is to launch and call the other classes. If you have verified that all the classes containing real program logic (i.e. all the code which can fail) is unit tested and works fine, you can have much greater confidence in that your whole app, when integrated from its smaller parts, works correctly too.

Update

Looking through your code, it seems that you don't initialize flag anywhere, so its default value will be false. You should initialize it to true in the constructor, otherwise your email retriever won't ever get called even if the timer fires properly.

To set the interval to 1 minute, my first guess would be

scheduleTimer1.Interval = 1 * 60 * 1000;

script to check if windows service is running and if it ain't to start that service. Windows 2000

net start | find "yourservice"
if %errorlevel%==1 net start "yourservice"

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