Thank you for the suggestion. I checked the length of my downloaded file and it is correct. Before downloading it again, it occurred to me to try 'Run as administrator' and it worked I guess I should have tried that in the first place.

<t>I downloaded SweetHome3D-3.4-windows.exe and when I run it under Windows 7 it always crashes with the following:<br/>
Problem signature:<br/>
Problem Event Name: APPCRASH<br/>
Application Name: SweetHome3D-3.4-windows.tmp<br/>
Application Version: 51.52.0.0<br/>
Application Timestamp ...