Retrieves the size of the Recycle Bin and the number of items in it, for a specified drive
_WinAPI_ShellQueryRecycleBin ( [$sRoot = ''] )
|$sRoot||[optional] The string that contains the path of the root drive on which the Recycle Bin is located. This string
can be formatted with the drive, folder, and subfolder names, for example "c:\windows\system\".
If this parameter is empty string, information is retrieved for all Recycle Bins on all drives.
|Success:||The array that contains the following information:
 - The total size of all the objects in the specified Recycle Bin, in bytes.
 - The total number of items in the specified Recycle Bin.
|Failure:||Sets the @error flag to non-zero, @extended flag may contain the HRESULT error code.|
Search SHQueryRecycleBin in MSDN Library.