How to associate a program with a given extension?

[ULTIMA PRIME]

1. Open in Notepad++ (F4): <c:\Program Files>\TC UP\PLUGINS\Tools\OpenFileTC\F3.ini

2. Remove *.djvu extension in SupportedExts section

Code:

[Program5]
Name=XnView
FullPath=%COMMANDER_PATH%\PLUGINS\Media\XnView\xnview.exe
SupportedExts=djvu - REMOVE THIS EXTENSION
OpenAtOnceForAnyExt=1

3. Save INI file and go back to TC UP

4. Select *.djvu file and press F3

5. Set your program for this extension