This macro is a part of the RCS menu but can also be used without it.
This macros produces a LaTEX'able file in which the differences between two versions are marked.
If you use a Revision Control System (e.g. CS-RCS, freely available for Windows from www.componentsoftware.com), you can thus easily compare two versions of a document.
The macro in this package
(The package changebar.sty marks changed paragraphs with bars in the margins and is available from CTAN;
Changes in the preamble can be ignored.
If you are using CSDiff 4.0 (included with CS-RCS 3.0), you may also compare the files by word.
This macro is part of the RCS menu. If you are going to use this menu, please refer to the installation instructions there. You don't have to download this macro separately.
If you do not want to install this menu, save the macro in the directory %b\Macros\LaTeX\ and create a menu entry for it, if you want. You might have to adjust the settings at the beginning of the file, so that they match your RCS installation.
To be able to use the LaTEX package correct.sty, you have to save it in a folder where LaTEX expects package files.
or go to the RCS menu page.
changebar.sty (from CTAN)
Macro contributed by Robert <w.m.lgmx.net>