Actually if you set your forms to Popup and Modal you can hide the Access window entirely using the ShowWindow API. If you do this though you will need to have a switchboard form or some other method for users to navigate to the forms, and you will have to set your application to close when the switchboard closes or else you will be left with a hidden Access process running in the background.
A note of caution. I've found this to be somehow flawed.
1) If the Access window is hidden, it is not accessible through taskbar, and not always via alt-tabbing.
2) Runcommand methods is no longer available, meaning you can't use those methods to save, delete, undo or manipulate records. While there are workarounds, they're just more hassle, and are error-prone.
In end, I simply gave up on using the API and deigned to simply maximize the form and restore the Access background so the desktop can be exposed.
Besides, this does not answer the OP's question. The answer is that if you search the forums, "Hide commands and toolbars", you'll find plenty of example of how to do this.