count - How many times program has run? C#

Question

How can I get the number of times a program has previously run in C# without keeping a file and tallying. If it is not possible that way, can it be gotten from the Scheduled Task Manager?

To C. Ross: how would this be done in a registry setting? forgive me. . . what is a registry setting?

Answer 1

I do this in a registry setting.

static string AppRegyPath = "Software\Cheeso\ApplicationName";
static string rvn_Runs = "Runs";

private Microsoft.Win32.RegistryKey _appCuKey;
public Microsoft.Win32.RegistryKey AppCuKey
{
    get
    {
        if (_appCuKey == null)
        {
            _appCuKey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(AppRegyPath, true);
            if (_appCuKey == null)
                _appCuKey = Microsoft.Win32.Registry.CurrentUser.CreateSubKey(AppRegyPath);
        }
        return _appCuKey;
    }
    set { _appCuKey = null; }
}

public int UpdateRunCount()
{
    int x = (Int32)AppCuKey.GetValue(rvn_Runs, 0);
    x++;
    AppCuKey.SetValue(rvn_Runs, x);
    return x;
}

If it's a WinForms app, you can hook the Form's OnClosing event to run UpdateCount.