Follow these instructions, if you do not have WinLens installed already.
(If you have WinLens setup on your PC please go to the update page.)

Installation of WinLens Basic is a simple process.

1) download the ZIP file below to a temporary location on your PC
2) extract the files (there will be 7 of them)
3) run SETUP.exe

then follow the on screen instructions.

download WinLens Basic here