I can't update update WD Smartware

Hi, i have a My Book 2TB on Windows 7, i tried to update the WD sw but i received the message that my dotnet is not updated so i downloaded it from the link in this guide: http://www.wdc.com/wdproducts/wdsmartwareupdate/step2.asp?id=wdfPID1&os=WIN. After that i tried to install the dotnet downloaded, but when i click on the .exe nothing happen.

What can i do?

Thx

W7 should have .NF 3.5 out of the box and does not allow to to reinstall it. If you’re having problems with .Net 3.5 then there’s a problem with your computer.

It has been reported that .Net is not enough, you also need the Adobe Flash Player and the Java RE.