change language

Change resolution temporarily or permanently with command line switches

Change how PowerPoint works with images forever! You'll wonder how you ever live

Change the background periodically and everything automatically ...

Change the background image periodically with the search engine of Microsoft

Change the looks of the MS Word 2007 toolbar to the old one.

Change the power management and performance settings of hard disks and CD/DVD.

Change Wallpaper Timely, with shuffle you will have a new wallpaper every login.

Change the modification, creation and 'last accessed' dates of files.

Change the audio pitch or audio tempo when playback video or audio file

Change PDF files password security setting.