I suspect I have a corrupt default file, but cannot get rid of it

There are several files that get installed and uninstalled through the AnzioWin and Anzio Lite setup program.

Extension or Filename Description
.exe The executable, such as anzio32.exe
.dll The language resource dll's
.cap Terminal capabilities files
.trs WordPerfect for UNIX terminal definition files
.dat Unicode character data files
.uni Unicode map files
.hlp Anzio help files
.prt Print Wizard definition files (AnzioWin only)
.c C program examples of simple download and upload
(AnzioWin only)
download An example script for downloading
.tic Terminal definition tic files
printwiz-samples\ Sample Print Wizard print jobs (AnzioWin only)

As long as you are working in English and under a standard Windows code page, the only files really necessary to run AnzioWin or Anzio Lite, are the executable file, the help file and the proper .kys key file for the terminal type you are using.