Please contact us at support@lansweeper.com and let us know which version of vncviewer.exe you are currently using. For easy referencing, include a link to this thread in your email as well.
but when I use vnc normally (not from web browser all working perfect) I have got something like this in lansweeper configuration. I copy vncwiewer.exe to folder \\sunserver\lansweeper and i share this for everybody like \\sunserver\lansweeper$