public int SetRoot(string path)
{
var myNewIndex = AddEntry();
Entry[] block;
var entryIndex = EntryIndex(myNewIndex, out block);
Root = new RootEntry();
Root.GetRootEntry(path);
Root.RootIndex = myNewIndex;
block[entryIndex].FullPath = Root.Path;
block[entryIndex].Parent = 0;
block[entryIndex].IsDirectory = true;
return(myNewIndex);
}