Voxler's system requirements are below: 

• Windows XP SP3 or higher, Vista SP3 or higher, 7, 8 (excluding RT), 10 or higher
• 32-bit and 64-bit operation system support
• 1024 x 768 or higher monitor resolution with minimum 16-bit color depth
• At least 500 MB free hard disk space
• At least 512 MB RAM
• Video driver with OpenGL acceleration, highly recommended

Updated October 31, 2018