File Merge Express is a utility software that compares and merges two files, displaying their contents and creating a third merged file. It also features an internal editor for convenient file editing.

One of the best things about File Merge Express is that it comes with a built-in text and binary editor which allows you to make changes within the program. You can also customize your comparison preferences through the multiple configuration options available. These settings allow you to ignore white space and text case when determining file differences.
For more advanced users, File Merge Express also supports command line parameters that can specify files to compare or a script file to use. This means that you can automate the comparison process and save time.
Another feature worth mentioning is the Windows Explorer extension. This allows you to launch File Merge Express by highlighting one or two files and selecting "compare" from the Explorer right-click context menu.
Overall, File Merge Express is a powerful and versatile file comparison and merge tool that offers a range of useful features.
Version 4.1: Documentation update. No changes in functionality.
Version 4.0: Unicode functionality throughout; Support for Windows Vista; Separate 32 and 64-bit versions
Version 3.0: Unicode functionality throughout; Support for Windows Vista; Separate 32 and 64-bit versions
Version 2.6: Improved Merge File handling
Version 2.5: Font choices and additional switches