Are you using the x64 version of regasm for registration (i.e. located in C:\Windows\Microsoft.NET\Framework64)? If so you need to add try-catch in ConnectToSw function and show the exception message on catch. Most likely you have an exception here and add-in doesn’t load.
Artem Taturevych, Application Engineer at Intercad (Australia)
translationXpert – add-in to translate SolidWorks models
Thanks for your reply but it seems that a simple restart solved the problem. Strange anyway....