最终的.NET文件和目录实用程序库?

我发现自己一直在写文件和目录实用程序函数,我想知道是否有好的文件和目录库已经实现了比在system.io中默认情况下更广泛的集合。我要找的功能有:

public static void GetTemporaryDirectory() 
{ 
   string tempDirectory = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName()); 
   Directory.CreateDirectory(tempDirectory); 
   return tempDirectory; 
}

public static void CreateEmptyFile(string filename) 
{ 
    File.Create(filename).Dispose(); 
} 

public static void CreateEmptyFile(string path, string filename) 
{ 
    File.Create(Path.Combine(path, filename)).Dispose(); 
} 

public static void CreateDirectory(string path)
{
    Directory.CreateDirectory(path);
}

public static void CreateDirectory(string path, string childpath)
{
    Directory.CreateDirectory(Path.Combine(path, childpath));
}