Hello Nikola,

thank you for your screenshot,

Download the Visual C++ 2013 installer available on following link (you need to download the x86 version also if the OS is 64bit):
https://www.microsoft.com/en-us/download/details.aspx?id=40784
In case this should not help try to use before this repair tool http://www.microsoft.com/en-us/download/details.aspx?id=30135 and then try again to start WebSite X5.
Please keep me updated.

Thank you.

the same is happening. I can not start the program. I've done all that you say and nothing ...

Hi Nikola, you've tried to open as Administrator?