A: Yes. The download package usually includes both. Choose the correct one—64-bit is standard today.
A: Some legitimate drivers use low-level USB communication, which heuristic antivirus engines may misclassify. If you downloaded from the official Proline site, add it to your exclusions list.
Remember: always verify the file hash if available, never pay for a “driver updater” software, and bookmark the official Proline driver page for future updates.
A: Indirectly. There is no official Linux driver, but you can use the CUPS backend with TSPL filters. Search for “rastertotspl” on GitHub.