InSizer was developed and tested on Windows XP and Vista. It is expected to work fine on everything from WIndows 95 and newer. Please let us know about your experiences with any of the older OS's.

The software installs with two executables.  insizer.exe is used for the Windows GUI.  insizer2.exe can be used at the command line.  For example --
       insizer2  -t  c:\my_photos

When you set a standard size in the InSizer GUI, you can set an option to be used for that size at the command line. When at the command line, you can see all available options by using the  -?  option --
       insizer2  -?