using System; using Microsoft.Win32; class MainClass { public static void Main(String[] args) { string lastUser; string lastRun; int runCount; lastUser = (string)Registry.GetValue(@"HKEY_CURRENT_USERSoftwareAC#","", "Nobody"); if (lastUser == null) { lastUser = "Nobody"; lastRun = "Never"; runCount = 0; } else { lastRun = (string)Registry.GetValue(@"HKEY_CURRENT_USERSoftwareAC#","LastRun", "Never"); runCount = (Int32)Registry.GetValue( @"HKEY_CURRENT_USERSoftwareAC#","RunCount", 0); } Console.WriteLine("Last user name: " + lastUser); Console.WriteLine("Last run date/time: " + lastRun); Console.WriteLine("Previous executions: " + runCount); Registry.SetValue(@"HKEY_CURRENT_USERSoftwareAC#","", Environment.UserName, RegistryValueKind.String); Registry.SetValue(@"HKEY_CURRENT_USERSoftwareAC#","LastRun", DateTime.Now.ToString(), RegistryValueKind.String); Registry.SetValue(@"HKEY_CURRENT_USERSoftwareAC#","RunCount", ++runCount, RegistryValueKind.DWord); } }