Please answer the following question: Information: - FastCAD is a CAD program for DOS and Microsoft Windows users. It is also the basis for the map-drawing software Campaign Cartographer. It uses the file extension FCW for its files. - Campaign Cartographer is a Windows program created by ProFantasy Software originally in 1993, designed to draw maps for role playing and miniature war games. The CAD engine is based on FastCAD, although most of code is written by the publishers. It includes a variety of add-ons for different genres, including fantasy, modern and science fiction. Campaign Cartographer 3, was released on 30 June 2006 and has since been updated 9 times. There are currently 9 add-ons for Campaign Cartographer; 6 drawing add-ons that add tools, templates, and symbol catalogs and 3 symbol set add-ons consisting of thousands of symbols. Campaign Cartographer has been used to illustrate novels such as "Shades of Gray" by Lisanne Norman, "Le Temple Des Eaux-Mortes" by Eric Ferris, and "Johannes Cabal the Detective" by Jonathan L. Howard. The "Forgotten Realms Interactive Atlas", published by TSR, Inc. in 1999, was likewise constructed using Campaign Cartographer. - AutoREALM is an open source program designed to draw maps for role - playing games , mainly in fantasy settings . The program is similar to the commercial Campaign Cartographer . AutoREALM , in its 2.x series , is primarily written in Delphi and only works in Windows and Wine . Work is underway to recode the GUI to use wxWidgets and extending the support to Linux , FreeBSD and Mac OS X. The program is a vector art program that supports various graphics layers . The program supports various kinds of grids and measurement methods . It supports drawing vector objects with both straight and fractal lines , and has various line styles . It also supports grouping of objects into map symbols that are arranged in a symbol library . The library shipping with the program includes various symbols from contributors . The program also has some other modules , such as AutoNAME , a name generator based on context - free grammars . After reading the paragraphs above, we are interested in knowing the entity with which 'autorealm' exhibits the relationship of 'platform'. Find the answer from the choices below. Choices: - dos - microsoft windows - windows
A:
microsoft windows