Process MainModule - can I avoid Win32 exception?-CodePudding

I am enumerating processes to find if excel.exe is running (for example). I get a lot of Win32Exception from system services and such.

Process[] pps = Process.GetProcesses();
foreach (var process in pps)
{
    string module = null;
    try
    {
        module = process.MainModule?.FileName;
    }
    catch (Win32Exception)
    {
        continue;
    }

which make enumeration to run 500ms instead of 10ms.

Is there a way to figure if a process has main module without triggering the exception? Or any other way to find process exe path?

CodePudding user response：

This exception occurs when you're trying to do something which your OS doesn't allow. You can check the NativeErrorCode property to see more details about the exception.

You can find a solution here to deal with that issue.

As mentioned by @steeeve in comment, you can use GetProcessByName, if performance is the only criteria for you.