ArtCAM 2008 was designed for Windows XP and Vista. Running it on Windows 10 or 11 often leads to driver crashes and "dongle not found" errors.
The short answer is . Autodesk discontinued the entire ArtCAM product line on February 7, 2018. After that date, they stopped selling new licenses and stopped offering trials. There is no legal free version of ArtCAM 2008, nor any legal "student edition" for that specific build. delcam artcam 2008 free
The benefits of using Delcam ArtCAM 2008 include: ArtCAM 2008 was designed for Windows XP and Vista