Screen Ruler 4.3 is free, but
unsupported and outdated version.
You can download Screen Ruler by clicking on the link below:
This is standard windows setup wizard - will ask you several question end will automatically install the program on your computer. For more download options - see below...
Additional software may be offered to you by the installer during the installation process.
If you want to be sure the download is checked for spyware and viruses by third-party site -- you could get it from CNET's download site:
or you may download only the .EXE file (zipped):
(After saving the file on your computer, just extract the archive and that's it - the program is installed)
The original product developed by Zarko Gajic, delphi.about.com. To get the original source code, visit: http://delphi.about.com/library/weekly/aa080205a.htm
The modified version is here: http://wonderwebware.com/screen-ruler/source.zip
Note that you'll need Turbo Delphi (free) or Borland Delphi to compile the project.