How do I open a sys file?

Click Start » Run » type: notepad.exe
Click File » Open » select to show all files from the "Show Files of Type" drop-down » browse to the file you want to edit.

but it is some way incryptet, so all that is shown in notepad is strage lettert =(

There's an option (on that download page that you mentioned) to report a corrupt file.  Sounds like that may be what you have there.

No, its not corrupt, the driver works alright, I just want to modify it. if you try to open some of the sys-files in the C:\WINDOWS\system32\drivers directory with notepad, it all looks like that. I think i need to disassemble the file, then modify it, and assemble it again.. i just dont know how?

I dont know if it is called to decompile or disassemble, but in some way make it readable..

Hai,

     You can disassemble the file but it will be full of assembly language codings so if you can work with the assembly language you can decompile it.But you can edit the properties of the file only if you are able to understand the coding.

Or you can use program like Winzaz to open the file.Try using VC++ also.

Regards
Venish

where do i get Winzaz?

Try a real editor, like UltraEdit: http://www.ultraedit.com/ 
I don't see anything in the file that you could  add/modify shortcuts. This is a driver for the KB. M$ assigns your shortcut keys with it's own interface.
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q301583 
Windows will allow you to change the fact that CTRL+C = copy and CTRL+V is paste... for eample.
-rich

Hai,

     My friend gave me winzaz and I don't know where he got that I searched the Internet and I was unable to find that may be some company stuff.But I have some other softwares that may help you.given the links below,

http://www.heaventools.com/overview.htm
http://www.chips.navy.mil/archives/94_apr/file14.html
http://www.newfreeware.com/utils/2313/

You can also try with some HighEnd Text Editors to oen the sys files.

Hope this helps

Regards
Venish

venishjoe>would you send winzaz to my mail please?

The one presant in my account, it can take 10 mb, so there should be no problem..

Hai,

      Iam afraid that I can't because it comes around some 350MB in a CD also you need the CD to Install.It won't Install without a CD. Since an IDE comes along with it may be the size is large.What about the other links I have posted.Does they work?

Regards
Venish

Ok, i want you to know that i really appreciate your help, but there is some problems:

PE Explorer only Disassembles the file to a programminglangauge i don't understand

I can't figure out how to download MTF Edtior 4.0, and

AT File Mole donen't support sys-files

But do you then know how to get VC++? i'm willing to try everything! =)

Are you still trying to edit the DRIVER? This tool: http://www.freshdevices.com/windows_shortcuts_tweak.html and many others are able to do what you want I'd think, without messing with the driver.  http://www.magellass.com/windows_shortcuts.html also. Search for "customizing keyboard" or "remapping keyboard windows" etc...

I don't think you'll find what your looking for in the driver, as it can be thought of as a "translator".
-rich

I'm not shore if you understand my problem richrumble, i have i keyboard with some extra buttons, the button are fx vol. up/vol. down, open IE, open explorer and so on.. Doesn’t the driver tell windows what to do, when pressing an exact button? In another version of the driver, I could change the things that happened when pressing a button, but that driver doesn't work in win XP, and the only driver that exists for XP is the homemade one I referred to earlier. Isn't it coded in this driver which of the multimedia-buttons is doing what?

I do understand that you have a multimedia keyboard. These buttons, are not defined in your driver, or the one you linked to, so you may have to add them yourself, have you tried other drivers for that KB?
http://www.input-drivers.com/drivers/83/83270.htm  (username and pass are always the same on that site U= driver P= all)
http://www.windowsxp-drivers.com/drivers/83/83270.htm (same one really...)

In order for you to edit and add the driver information, #1 you'd have to have decompile the code (it's "C" btw) and be able to repack it. #2 you'd need to know the scan codes for the KB, those "extra" keys actually are a combination of other keys, just like the "windows" buttton is CTRL+ESC... and the one on the right, the "properties" shortcut is just ALT+Enter. Those "multimedia" keys function the same way, they may or maynot be defined in the driver.

So to open windows Explorer, press the windows key + E or to open IE, press CTRL+N. That's all those keys do, they aren't actually very "custom" at all.
http://www.computerhope.com/shortcut.htm#1
-rich

ok, i have tried other drivers, and also the one that you refer to, sadly, it is a win 9x driver. But what about the volume up/down-buttons? I have never heard of a shortcut combination on the keyboard, that turned the volumen?.. And, would you tell me how to do all the things that you descripe to change a funktion? I know it is a lot to ask, but it would be wery nice of you!

OK.. i think you have been very helpfull, and you havn't criticiced my bad spelling =), now i think i can manage the rest with help from a site in my own language.. whitch wil easy the proces a littel! THANKS!!

Obtain your .sys file. Downoad OllyDbg or any other PE header modifying program. You need to change the SUBSYSTEM IMAGE of the file.

For OllyDbg to this:
View - >File -> Open .sys file ->Right mouse button on hex data -> Special -> PE header -> Scroll down ultil you see this:
00000124   0100         DW 0001              ;  Subsystem = IMAGE_SUBSYSTEM_NATIVE

Change that to
00000124   0300         DW 0003              ;  Subsystem = IMAGE_SUBSYSTEM_WINDOWS_CUI

You do that by right mouse click, binary edit, change 1 to 3. Save the file: Right mouse click, save file.

now you can run the file in OllyDbg, be sure you have all other .sys files in the same dir because it is probably going to ask for them. Goto window E,  you see all loaded modules. Selecht your .sys file with right mouse click and choose "View code in CPU".

Now you have the disassembled code in assembly language. In a debugger you will pick up references to functions and stuff to.

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