R2L is the latest software revision for Stan Viewer, and is available free of charge for all customers with a Stan Viewer installation.
All versions of STAN Viewer (R2 series) are compatible with the following software versions:
Windows 98
Windows NT
Windows 2000
Windows XP, both 32- and 64-bit versions
Windows Vista, both 32- and 64-bit versions
Windows 7, both 32- and 64-bit versions
Windows 8, both 32- and 64-bit versions
Windows 10, 64-bit version
Windows 11
Internet Explorer 5.0 is a minimum requirement.