Hardware and Software Requirements

EditWriter 5 and GenEDITS Plus are based on the Microsoft® Windows® operating system. The minimum hardware requirements are the same as those of the operating system used. If your computer runs Windows satisfactorily, it should do well with these programs.

The Edit Engine is provided for Microsoft Windows as a dynamic link library (EDITS50.dll).

EditWriter 5 and GenEDITS Plus, which includes the EDITS50.DLL, are published for Microsoft Windows in 32-bit and 64-bit versions.


Metafiles are portable SQLite databases. A custom metafile is created using EditWriter 5 and utilized by editing software such as NPCR’s GenEDITS Plus.

Please download the latest metafiles from—

Installation EditWriter 5

Download EditWriter 5—

The download includes—

  • EDITS50.DLL (edit engine).
  • Release notes.
  • Context-sensitive user help file.
  • Programmer documentation.
  • CStage0205.dll (for running Collaborative Stage edits).
  • A tool for viewing and querying SQLite metafiles provided as an aid to programmers (MetafileBrowser and Metafile_Browser.chm).
  • Configuration files for generating reports as Microsoft Word and XML/XHTML documents.

Installation Instructions for GenEDITS Plus

Download GenEDITS Plus (Release Date: November 2, 2020): setup_geplus5_32bit_02Nov2020.zip (compressed file, 45.8 MB)

Unzip and double-click on setup.exe to begin the setup program. Instructions for using GenEDITS Plus are in the Help document installed with the program.

GenEDITS Plus Release Notes

  • Release date: November 2, 2020.
  • GenEDITS Plus is for use with NAACCR version 21 and 22 XML metafiles.
  • GenEDITS Plus includes the EDITS50.dll, which requires a record layout definition in the edits metafile.
  • The base dictionaries preloaded into GenEDITS Plus were final at the time of release and are subject to change over time. Base dictionaries can be replaced in the GenEDITS Plus Data Dictionary folder. Please check the NAACCR website for the latest base dictionaries and replace the dictionaries in the Data Dictionary folder as needed.



NPCR is asking vendors to participate in testing EDITS51.DLL.

  • The DLL will be included in future NPCR EDITS software releases.
  • The DLL does not require a record layout definition in the edits metafile. Client applications will pass data to be edited as an array of key-value pairs rather than a fixed-column position flat string as in the previous version (EDITS50.DLL).
  • The DLL is available to agencies for beta testing through August 31, 2022.
  • NAACCR is not planning to include a record layout in the NAACCR v23 metafile, so EDITS50.DLL cannot be used with the v23 metafile.


Agency testing with real-world scenarios has proven to be the gold standard for complete and accurate data collection.

  • To receive the testing install package for EDITS51.DLL, send email to cancerinformatics@cdc.gov with the subject line: Beta Test EDITS51.dll.
  • The zipped package includes a readme.doc file for developer reference. It explains how to update the program for paths before running the application, documents APIs that have been updated, and provides a note about the XMLExchangePlus library if you use this library to read and write NAACCR XML (the sample uses this library).

Technical Support

For technical support via e-mail, contact cancerinformatics@cdc.gov.