Windows Shell Extension

In Windows you can right-click a file to show a context-menu and choose from various options.

There can be customized options for specific file types if you add registry keys to both HKEY_CLASSES_ROOT and HKEY_LOCAL_MACHINE.

Originally, Gumby wrote such shell extension but it refuses to work on some systems. Either Windows 10 needs HKEY_LOCAL_MACHINE as well or other registry settings of other programs are interfering.

HKEY_CLASSES_ROOT

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\.oni]

[HKEY_CLASSES_ROOT\.oni\shell]

[HKEY_CLASSES_ROOT\.oni\shell\OniSplit_or_OniSplitGUI]
@="Command name to be displayed in context menu"

[HKEY_CLASSES_ROOT\.oni\shell\OniSplit_or_OniSplitGUI\command]
@="\"C:\\PATH\\OniSplit_or_OniSplitGUI.exe\" \"%1\""

HKEY_LOCAL_MACHINE

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.oni]

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.oni\shell]

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.oni\shell\OniSplit_or_OniSplitGUI]
@="Command name to be displayed in context menu"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.oni\shell\OniSplit_or_OniSplitGUI\command]
@="\"C:\\PATH\\OniSplit_or_OniSplitGUI.exe\" \"%1\""

Advanced conversions

If another program handles OniSplit and automatically feeds it with the right arguments you would only need this:

collect and process OniSplit helper list

Some conversions require more than one input file. In that case can collect the other files first:

collect for OniSplit helper

Additional, useful options might be:

repeat last OniSplit helper conversion
clear OniSplit helper list

Install and uninstall

A less tech-sevvy modder shouldn't need to deal with registry settings.

AEI could be used to distribute an OniSplitHelper tool that manages also the registry.

Perhaps "Vago" and "Simple Onisplit GUI" could be adapted to do that.