When I am trying to open AECOsim Building Designer V8i, I am getting following error message.
1. Download Microsoft Windows .NET 3.5 on demand installer.cab file from HERE.
2. Put this file in the C:\xxxx.. drive.
3. Open Windows start menu, Type ‘cmd’, Run Command Prompt as Administrator.
4. Copy following command and paste it in command prompt.
‘ Dism.exe /online /enable-feature /featurename:NetFX3 /source:C:\ /LimitAccess ’
5. Hit Enter, wait until the process completes.
This should resolve .NET 3.5 error.
Activating .NET Framework 3.5 for AECOsim Building Designer on Windows 8 or 8.1