This is how I use my mouse in a joystick only game...

[Bazrrrr]

Some games require only joysticks so to get around this I use a program called GlovePIE and virtual Joystick driver called ppjoy. I've used this setup for several years. GlovePIE is very versatile and allows you to get almost any peripheral to act as another. You can even combine multiple joystick to work through the one virtual ppjoy driver. There's a vast word document showing what it can do provided with it.

If you google ppjoy and GlovePIE there are plenty of guides on how to install and use these. I'm using it fine in windows 10 64 bit and it should be fine all the way down to xp.

To get ppjoy installed you have to put windows into testmode because of the unsigned driver. When you've setup your ppjoy driver be sure to select it as the main device if you have a real joystick connected too.

This is done by opening the game controllers window, then advanced button. There will be a drop down list under "Prefered Device" so select the ppjoy joystick which is likely to be called "Parallel Port Joystick device 1" or something similar.

The tricky part I found was the mouse scripts needed. There are a few out there so I've listed them here. You can open the game controllers window the same as you would for any other joystick while the GlovePIE script is running and you can see exactly how the joystick is behaving via the crosshair in the box. Copy and paste these scripts into the GlovePIE window and click run. Don't forget to save them locally once you have pasted them in.

Generic mouse script which won't autocenter and allows the mouse wheel to be a throttle:

http://pastebin.com/J6X7G84n

The mouse script below is my favourite generic script, it allows throttle, autocentering and when the mouse is moved beyond a certain speed the joysdtick will continually move in that direction meaning you won't actually need the keyboard for faster movement:

http://pastebin.com/T2zLpQGW

This next one is my own personal script, it is a bit messy with various things commented out parts but it will allow you to combine one existing real joystick with mouse movement too.

http://pastebin.com/TDdSySpG

All my videos with XVT and XWA on my youtube channel are using mouse and joystick combined with the above script.

If you're not too comfortable with basic coding this can be a bit overwelming. The second generic mouse script explains what it is doing quite well. My one has some handy variables at the top which will allow for some playing around with the numbers. My script will also have my custom keyboard and joystick binds so you may want to delete/edit out those.