Projects made in WonderShare DVD Slideshow Builder (*.dsb) can be exported to several multimedia (video) formats, including the AVI. Other than that, there is probably no way how to convert these *.dsb files.
Convert WonderShare DVD Slideshow Builder project file to Audio Video Interleave movie.
We found one software available in the database for this conversion.
Microsoft Windows software - convert dsb to avi on Windows
A program for making DVD photo slideshows
Convert from dsb file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.