Win2003srv x64 I have found in a network, didn't look yet, and here x86 haven't got while. With MSDN to swing it will not turn out, sponsors aren't present

Has found recently WinXP chk, 2 hours I wait, when 3rd will be put servicepack

Now I look on Windows XP Media Center edition 2002 Checked/debug - anything outwardly doesn't differ from usual Windows XP, except SP. It can not MCE? Disk label - X1APCHK_EN

Disk 1 of WinXP Media Center Edition is WinXP Professional, disk 2 is with the Media Center components ...

How to remove watermark from desktop after installing XP SP3 Checked build?

How do you remove watermarks for these checked build?

You can't.

What about updates? Are all update for the free build also published for the checked builds? And do they come through windows update?

Since checked builds are not intended for production environments, I don't think so.

Urrrh, that's not the case at all; free builds have no such checks. Checked builds on the other hand make use of ASSERT and NT_ASSERT macros to allow developers to place checks on certain expressions and if they evaluate to false, allow the option to break in to a debugger for example. Checked builds also contain any additional code included inside of #if DBG directives that can perform further tasks the developer chooses.


I would change that to be most user-mode components. Those components that wouldn't be compiled using a checked environment would be those that are binaries supplied by other teams outside of the Windows division or that vendors have supplied or those that perform sensitive tasks such as licensing protection or security or MPEG decoding as examples.

You can check if a system is running a checked kernel by looking at the value of certain global variables. In earlier versions of NT, the variable was ExBuildVersion, in newer versions it's NtBuildNumber.

kd> dd nt!ExBuildVersion l 1
801a6d70 f00001ff

If you look at the value in more detail, you'll see it actually contains two parts. If the first part is an 'f', it's a free build. If it's a 'c', then it's a checked build. The second part shows the actual build number. In this case, it's 511 which is the RTM version of Windows NT 3.1.

You also don't need to install the complete checked build, you can copy across only the binaries of interest. It might be that you only need a checked build of ntoskrnl.exe and hal.dll or then you might only need a checked version of a user-mode component you're troubleshooting.

If you check the Microsoft Knowledge Base, a few components are documented for which using a checked build will supply additional tracing information. For the other components, it is purely a choice made by the developer as to what steps are required to "turn on" additional features of checked components. Some components require no configuration and will generate tracing information by default. Others you need to add entries to INI files, the registry, start the component using a different command line or even break in with a debugger and change global variables.

Most of the problems with having to use checked components just to obtain tracing information go away as components start to use Event Tracing for Windows which was first included in Windows 2000.

I've never used checked builds, only the free builds.

What about 9x?

What about it? Windows 9x also has Free and Check/Debug builds.

even Windows 3.1 has a checked build. (Included in the SDK)

fine ,thinks!




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Well...., thanks for your information.

Both 32 and 64-bit Longhorn 4051 Checked/Debug ISOs are broken, has someone workable copies?

More details/proofs of testing here.

why some OS when installed ,the product ID count OEM,but it still have to active????