myString.Substring(0, myString.LastIndexOf('.'))
	
Path.GetFileNameWithoutExtension("images.png")
	
mystring.Split("."c)(0)
	
Path.GetFileNameWithoutExtension("filename.png");
	
string s = "images.png";
Console.WriteLine(s.Substring(0, s.IndexOf(".")));
	
Dim fileName As String = "images.png"

fileName = IO.Path.GetFileNameWithoutExtension(fileName)

Debug.WriteLine(fileName)