i created an physical folder:
C:\Inetpub\dotnetduke\samplefolder
 
and this one i insert into the file:
FolderPath = "C:\Inetpub\dotnetduke\samplefolder\"
 
this does not work.
 
then i tried:
FolderPath = "/samplefolder/"
also that does not work.
 
what do I have to write if i want to use the physical folder located at: C:\Inetpub\dotnetduke\samplefolder  ??