[Wine] starting programs via context menu

[l1n00x]

I'm running Sidux and Wine 1.0-RC2. When I right clicked on an exe file it showed me an option to launch the file using wine. That feature is now gone and even double-clicking does not work but instead offering me to choose a program for opening the file.

Now I want to re-enable the context menu feature or at least let wine open exes by double clicking.

thanks