Find sidste 4 tegn i filnavn

Right(Filnavn,4)

Filnavn = "minmegetlangefil.asp"
fire = Right(Filnavn,4)

Du kan også bruge FileScriptingObject.

Dette er taget fra Microsofts side :


Scripting Runtime Library 

GetExtensionName Method
Returns a string containing the extension name for the last component in a path.

object.GetExtensionName(path)
Arguments
object
Required. Always the name of a FileSystemObject.
path
Required. The path specification for the component whose extension name is to be returned.
Remarks
For network drives, the root directory (\) is considered to be a component.

The GetExtensionName method returns a zero-length string ("") if no component matches the path argument.

The following example illustrates the use of the GetExtensionName method.

[JScript]
function ShowExtensionName(filespec)
{
  var fso, s = "";
  fso = new ActiveXObject("Scripting.FileSystemObject");
  s += fso.GetExtensionName(filespec);
  return(s);
}
[VBScript]
Function GetAnExtension(DriveSpec)
  Dim fso
  Set fso = CreateObject("Scripting.FileSystemObject")
  GetAnExtension = fso.GetExtensionName(Drivespec)
End Function

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