Epson Powerlite Home Cinema 8350 Drivers and projector software download page for Windows and Macintosh.
OS: 
Windows 7 (32-bit, 64-bit), Vista (32-bit, 64-bit), XP (32-bit, 64-bit), 2000.
Throw Distance Calculator for Home Cinema 8350 Download (1KB)
File Name: ProjectorCalculator.jsp
OS: Windows XP, Windows 2000, Windows Me, Windows 98
Epson Powerlite Home Cinema 8350 EMP Link 21L Utility v1.20 Downlaod (3.26MB)
OS: 
intel-based Macs with OS X, PowerPC Macs with OS X
Throw Distance Calculator Download (1KB)
FileName: ProjectorCalculator.jsp