The URL for MC v15.6.6 is

   http://downloads.soti.net/MobiControl/MobiControl1566Setup_1010_release.exe

URL for version 15.6.5 is http://downloads.soti.net/MobiControl/MobiControl1565Setup_1018_release.exe

Hi Sinan,
 
Thanks for posting on SOTI Pulse, Thanks Raymond and Onno for responding to the post, your expertise and willingness to help are greatly appreciated!
 
Here's the download link for MobiControl version 15.6.6 

https://downloads.soti.net/MobiControl/MobiControl1566Setup_1010_release.exe

If you have any additional questions or concerns, please don't hesitate to reach out. We're dedicated to providing assistance and support.