我想以编程方式检查是否安装了最新版本的
Windows服务.我有：
var ctl = ServiceController.GetServices().Where(s => s.ServiceName == "MyService").FirstOrDefault();
if (ctl != null) {
// now what?
}
我在ServiceController接口上看不到任何会告诉我版本号的内容.我该怎么做？
解决方法
我担心除了从注册表获取可执行文件路径之外别无其他方法,因为ServiceController不提供该信息.
这是我之前创建的示例：
private static string GetExecutablePathForService(string serviceName,RegistryView registryView,bool throwErrorIfNonExisting)
{
string registryPath = @"SYSTEM\CurrentControlSet\Services\" + serviceName;
RegistryKey key = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine,registryView).OpenSubKey(registryPath);
if(key==null)
{
if (throwErrorIfNonExisting)
throw new ArgumentException("Non-existent service: " + serviceName,"serviceName");
else
return null;
}
string value = key.GetValue("ImagePath").ToString();
key.Close();
if(value.StartsWith("\""))
{
value = Regex.Match(value,"\"([^\"]+)\"").Groups[1].Value;
}
return Environment.ExpandEnvironmentVariables(value);
}
