how to make customised win7 dvd for a specific system help

Well, I don't know exaclty how but it should be possible if you make an app for that.
Windows vista and 7 setups are started from winPE, a minimal version of windows that boots from the dvd and it has only a commandline interface. When winPE is booted it starts one of the 2 setup.exe (I think the one in sources).
So when you play a bit with the winPE image (boot.wim) you can set that it doesn't autostart setup.exe, but a program you made by yourself (WINPE HAS NO .NET FRAMEWORK). That program checks the hardware (bios is the easiest way I think) and if it's the right hardware it call's setup, else it does whatever you want.

But I don't know how to check the bios, and because it has no .net you can't program in vb or c#.

 

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That's to activate it on that specific pc, but I think kittu8_in2002 wants to make the dvd useless in another pc than his.

 

I took it to mean that the OP wants to make a minimalized DVD to install only what is needed. Like with nLite on XP. I'd like a tool like that for Win 7 as well so I can remove all the components I don't need, have only the drivers I need installed, and have all the settings adjusted how I like right from the install.

The DVD would then be specific to that system because those are the only drivers it will install.

 

Why do you want to do that? What are you hoping to accomplish?

 

I think the cert is specific to the model but the OEM keys are generic to the version. With 7 for instance all versions are kinda included in the ISO. But most use ultimate for its functionality. All versions have the same performance I think. But there are tools that can disable the ISO so more than just ultimate can be used but again most don't want a lower version than ultimate. Their is also a tool that can convert a 7 ISO to any version like for instance pro

 

Oh, dvd's that come with a pc can activate that pc, and every pc with the same slic. But I think those boot fine on any pc, at least my acer vista rtm dvd boots everywhere.
So if you want to make the dvd only activate the pc's with the slic you want than the oem folder to insert cert and key is the way to go.
If you want your dvd to refuse to do anything on another pc then yours you have to mess with winpe, but I think most oems don't touch winpe except for an oemlogo on boot maybe.

 

Yes I know

 

For the program it's the easiest if it's done in a language that doesn't require .net, but if it does you can convert it to native x86 code with xenocode .net obfuscator.
The rest can be done easier. You only have to rename dvd\sources\setup.exe to something else and name the systemcheck app "setup.exe". Winpe will call setup.exe wich is your program then, and your program calls the renamed setup. If done like this you don't need to edit boot.wim.

BUT NONE OF THIS METHODS IS WATERPROOF:
When you bootup you can still acces the recovery console, and from there you can run setup manually on any pc.
Also when you start the setup from within windows you can start the exe manually.
The only way to fix the recovery console issue would be to edit the 2 images in boot.wim (the one for install and the one for recovery) and block winpe's acces to the dvd drive if it's not the right system.

Setup from within windows may be blocked be renaming sources\setup.exe, the setup in the dvd root won't find sources\setup than. If you start sources\renamedsetup.exe manually it's possible it installs fine, but (hopefully) it could be that it fails after the first reboot because of wrong filename. But my guess is whatever you do installing from within windows will always be possible.