When I executed the Toad for Oracle Bundle Commercial installer and selecting Toad for Data Analysts 2.5, the installer fails stating that .NET 3.5 is not installed.
However, I do have .NET 3.5 installed.
Install Toad for Data Analysts 2.5 with the standalone .MSI installer separately. You can download the Toad for Data Analyst .MSI installer from our website, www.quest.com.
Waiting for fix in a future version of Toad for Oracle .