Sizer helps you to resize any app to the size you want. It is rediculiously small application which can help you to resize windows. As developers if you need to test app at different size this is one of the best app to use.
You can download the app from http://www.brianapps.net/sizer4/sizer4_dev570.msi
More more about the app you can visit http://www.brianapps.net/sizer4/
Download and enjoy.