On this page you can download the utiltities which are needed to install drivers which complain about not being "intended for use with your computer model".

The utility is, like all other driver packs, made by Sull86 of micropctalk.com.

All credits go to the original author!

See the original instructions below.

Model.txt Trick [Updated: 10/5/08]

What is all this talk about the model.txt file ?

Sony packs all the drivers and applications with a model check, very simple it just looks if the executable matches up to your model UX, this can be a pain in the but, specially for folks with Vista who want to downgrade to XP or myself who has a Japanese model UX.

Preview: 

How do you trick Sony's executables ?

We will go over how to do the trick in Windows Vista and Windows XP.

Windows Vista

1. Locating the model.txt, you should find the file in C:WINDOWS if you do not see the file you will need to grab any Sony driver or application which is not intended for your model and run it, it will fail and the model.txt file will be created.

2. Right click the model.txt file, scroll down and click Properties, at the top of the window click the Security tab. We are going to make sure we have full permission to do what we need, though this part might be redundant, it just takes a second.

You should see a Advanced button in the lower right hand corner of the window, when you press the advanced button a new window should pop up, at the top of this window select the Owner tab, in the lower left hand corner of the screen press Edit, now double click your user name and press ok, you will most likely get a security window which says "If you have just taken ownership of this object, you will need to close and reopen this object's properties before you can view or change permissions" this is exactly what we are going to do, press ok and continue pressing ok until the properties window is closed.

Now, we are going to go back into the model.txt properties to change the permissions so the file cannot be written to.You know what to do  right click the model.txt file and click properties, at the top of the window select the Security tab, close to the top of the window you should see "Group or user names:" for each name listed we are going to highlight them by clicking each name once and then click the Edit button, a new window should popup and now you should put a checkmark in the box to deny write permissions, now remember we want to do this for every name in the "Group or user names:" box.

3. If you have followed the directions correctly, when you run any executable packed by Sony you should get an error, let it continue on and it should finish without any problems 
Windows X

Alternate method for Windows XP or Vista

Another way to get rid of the model.txt completely, unpack any application/driver with a program called WUN or Universal Extractor 1.6.1  (note by Arjan: This is the download shown to the left on this page and it will redirect to the original application's download page, which is still online). all this does is removes Sony's executable with the check

Sull