查看“Microsoft Diagnostics”的源代码

{{Infobox software
|name=Microsoft Diagnostics
|image=MSD30.png
|imagecaption= Microsoft Diagnostics 3.0
|arch=x86
|os=[[MS-DOS]]
|type=诊断软件
|ir-version=1.0
|ir-date=1990
|lr-version=3.01
|lr-date=1994
|license=专有
}}
Microsoft Diagnostics（<code>msd.exe</code>）是 [[MS-DOS]] 的信息和诊断程序。它显示计算机的某些硬件和软件组件的信息，例如 BIOS、处理器、显示器、鼠标、键盘、CD-ROM、网络、串行和并行端口、驱动器和操作系统。Microsoft Diagnostics 是 [[MS-DOS 6]]、[[Windows 3.1x]] 和 [[Windows 95]] 的一部分。它的 Windows NT 对应项是 [[Windows NT 诊断器]]（<code>winmsd.exe</code>）。

==History==
Version 1.0 can be navigated with the use of either arrow keys or {{key press|Alt}} and a highlighted letter. By selecting a category, additional information about it will be displayed in a pop-up window. It also lets the user see the content of system files, such as <code>CONFIG.SYS</code> or <code>[[AUTOEXEC.BAT]]</code>.

Starting with version 2.0, it also displays the installed version of Microsoft Windows (with Windows 9x operating systems being identified as their kernel version 4.xx) and a mouse can now be used to navigate through the tool. Pop-up windows now also function like windows in Windows 3.x. By clicking on the button at the top left corner, the window closes. The tool also gained a new menu bar, where most options previously seen at the lower half of the interface moved into. The CD-ROM category merged into the hard disk one, where CD-ROM drives and the installed MSCDEX version are being displayed. The Game Adapter category moved into the new Other Devices area.

Version 3.0 added support for the Pentium processor, but other than that, didn't change much from the previous version 2.1. Its development was ceased prior to the release of [[Windows 95]], with itself being dropped from Windows with [[Windows 98]] and replaced by the Win32-based [[System Information]].

The latest version of Microsoft Diagnostics is able to identify most hardware from as late as the mid-1990s; later hardware like P6-based Pentium processors or later display adapters will be identified as Unknown. It is also not Y2K-compatible, as BIOS dates beyond 1999 will be displayed as 04/23/90.

==Versions==
*1.0 (1990)
*1.1 (1991)
*2.0 (1992)
*2.1 (1993)
*3.0 (1994)

== 图库 ==
<gallery>
MSD10.png|Microsoft Diagnostics 1.00
Win3.10.026 29 dos prompt window msd.png|Microsoft Diagnostics 1.10.24
MS-DOS-6.22-Diagnostics.png|Microsoft Diagnostics 2.1
</gallery>