MVVM text files often make use of so-called 'active content' consisting of scripts and stylesheet data in the file itself or in external common files. (Such external files used by many text files together are an essential element of a site with hundreds of documents.) Here, these scripts and stylesheet data are entirely harmless and do not make any illicit use of your computer. Not allowing the use of such 'active content' may seriously impair the presentation of text files. For example, the MVVM and TRINPsite floating menus will not be shown. It will also disable various options made possible with scripts. Even the copyright notice in the JavaScript alert below will not work anymore.