Run-Time Error 5:  Invalid file access
 
The procedures Append, ChDir, Erase, MkDir, Rename, Reset,
Rewrite, or RmDir generate this error upon attempting to:
 
  ■ Read from a write-only file
  ■ Write to a read-only file or a directory name
  ■ Write to or create a file or directory on a full disk
  ■ Create a directory by an existing name
  ■ Rename a file to an existing name
  ■ Rename a directory
  ■ Remove a read-only file, a nonexistent file, the root
    directory, or a non-empty or nonexistent directory