C#

using System;
using System.Management; 

namespace MyNamespace
{
	class PrinterOffline
	{
		[STAThread]
		static void Main(string[] args)
		{
			ManagementScope scope = new ManagementScope(@"\root\cimv2");
			scope.Connect();

			ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win32_Printer");

			foreach (ManagementObject printer in searcher.Get()) 
				Console.WriteLine(printer["Name"]);
		}
	}
}

string applicationName = "Firefox";
Process[] processes = Process.GetProcessesByName(applicationName);
foreach(Process process in processes)
{
	FileInfo fileInfo = new FileInfo(process.MainModule.FileName);
	Console.WriteLine(fileInfo.DirectoryName);
}