With today's release of Spectragryph v1.2, the main branch of development now includes live image grabbing from USB webcams and conversion to spectral data. With this new features, the Spekwin32 prototype is finally obsolete. Please visit the Spectragryph website and download and try the new Spectragryph version. It is free for all private and non-commercial users just like Spekwin32.
Looking forward to your feedback!