If you are new to Maya Composite and are looking for the Preferences files, you can find them here:
1) The "default.txproject" file which is located by default in
or within Toxik go to Edit ---> Project Preferences, under the Information Tab you will see the path and name of the file.
This file is your project preferences, so will hold for example, render settings and composition settings. You can have multiple project preferences file and therefore can easily change project without have to reset all the paths.
2) The "preferences.txuser" file which is located by default in
This file is your user preferences, so will hold for example, color palette, hotkey catalog information and bookmarks. This file is saved automatically when you change a preferences within Toxik, simply go to Edit ---> User Preferences
3) The"Hotkey Catalog.txsetup" which is located in
This file contains your hotkeys. Within Toxik you can go to Edit --> Hotkey to see or update them
4) The "toxik.ini" file which is located in:
C:\Program Files\Autodesk\Autodesk Toxik 2010\etc
This file contains the environment variables. For example
This file is only created when Maya Composite is started interactively, so for example, a render node will not have a toxik.ini.