Cd Writer Vista Where Can I Find The Software For My Cd/dvd Writer(hl-dt-st Dvdram Gsa-t50lata)after Upgrade 2 Vista Ultimate?

Where can i find the software for my cd/dvd writer(hl-dt-st dvdram gsa-t50lata)after upgrade 2 vista ultimate? - cd writer vista

Windows can not load the device driver for this hardware. The driver may be corrupted or lost. (Code 39)