It's not going to be too easy, but a FAT documentation[^] and perhaps some existing (non C#) code should do the job. FAT is not really complex compared with newer file systems. regards

Also your shellExecute.Verb should be "open". List of Verbs - http://msdn.microsoft.com/en-us/library/bb762153(VS.85).aspx[^] Just because we can; does not mean we should.

Did you sort it? Dave BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn) Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

Hi, it's me again. Sry, for didn't answering yesterday, was on my way home. Okay, so opening the file is not the problem. The problem is to get the path and name of the file to open. So let me guess that you doing something like this. public string getFullPath(string sPath) { string sFileName = lvFiles.SelectedItem[0].Text; return System.IO.Path.Combine(sPath, sFileName); } private void executeFile(TreeNode nodeCurrent) { Process.Start(getFullPath(nodeCurrent.FullPath)); Process.Start(String.Format("\"{0}\"", getFullPath(nodeCurrent.FullPath))); } If you are doing this, you get an error from the compiler? Did you include the Namespace (using System.Windows.Forms)? Or rewrite it to private void executeFile(System.Windows.Forms.TreeNode nodeCurrent) { ... } Does this solve your problem? Regards Sebastian

Having one on you right now :beer: :-D Dave BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn) Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)