1st - Most Vista era computers are probably 32 bit 2nd - 32 bit software DOES run on 64 bit systems 3nd - CD is 700MB and it is simple to upload the ISO to your google drive and provide a link to the file so it can be downloaded. 4th - if there are special drivers, THEN it may not run on Vista if the drivers do not support it, and drivers were a problem with Vista.
Answers & Comments
1st - Most Vista era computers are probably 32 bit
2nd - 32 bit software DOES run on 64 bit systems
3nd - CD is 700MB and it is simple to upload the ISO to your google drive and provide a link to the file so it can be downloaded.
4th - if there are special drivers, THEN it may not run on Vista if the drivers do not support it, and drivers were a problem with Vista.