>>What is get_Length() ? (I'ts certainly not a static method of System.IO.FileInfo)
>>IAC this works :

System.IO.FileInfo fi = new   System.IO.FileInfo("d:\\tmp\\longfilenamelongfilenamelongfilenamelongfilenamelongfilenamelongfilenamelongfilenamelongfilenamelongfilenamelongfilenamelongfilenamelongfilenamelongfilenamelongfilenamelongfilenamelongfilename.txt");
>>
>>long i = fi.Length;

Length of the file name is 196.....
>
>A reference from fileinfo will work. The problem is with the DirectoryInfo class. This ones uses a get_Length function when we call the GetFiles() method.

I don't understand. I think you need to post some code