You could have downloaded ActiveRotation 1.01 from our software library for free. The program relates to Multimedia Tools. This free program was originally produced by EIZO NANAO CORPORATION. The most popular version of the software is 1.0.
From the developer:
This utility software, in combination with a compliant graphics board, changes the resolution in accordance with the orientation of the monitor.
OSes: Windows XP 32-bit, Windows XP 64-bit, Windows 2000
The program utilty is available for free download from eizo downloads page
You may want to check out more software, such as ABCedit, Wondershare PPT to iPod or Veeam Reporter, which might be related to ActiveRotation.