通过注册表判断一个服务是否存在

 1         private bool IsServiceExist()
 2         {
 3             string[] subkeyNames;
 4             RegistryKey hkml = Registry.LocalMachine;
 5             RegistryKey software = hkml.OpenSubKey(@"SYSTEM\CurrentControlSet\services");
 6             subkeyNames = software.GetSubKeyNames();            //取得该项下所有子项的名称的序列，并传递给预定的数组中
 7             foreach (string keyName in subkeyNames)
 8             {
 9                 if (keyName == serviceName)
10                 {
11                     hkml.Close();
12                     return true;
13 
14                 }
15             }
16             hkml.Close();
17             return false;
18         }