Halfdone Development
Unknown Devices

Unknown Devices


New! You can get a beta version of the next Unknown Devices with Windows Vista support. I will be posting new beta versions as features are added but please give it a shot and let me know if you have any issues at catfish@halfdone.com. The beta version works with Win95, 98, 98se, 2000, XP, 2003 and Vista.

Download Beta 1.4.20 (June 2, 2007)

I also setup new forums! Visit http://forums.halfdone.com, where you can post comments and bug reports about the site and Unknown Devices. As always you can still email me directly if you wish otherwise.

Version 1.2

Download Now!
* Download latest pci update at Craig's website (right click, save link/target as...).


Unknown Devices helps you find what those unknown devices in Device Manager really are.

By checking Device Manager for unknown devices and extracting information from it, this program attempts to figure out what the device is. You might not have to open your case or look up random numbers off of PCI cards to figure out what they are.

Program supports Win95, 98, 98se, Me, 2k, XP and 2003 but not NT. It also attempts to support future OSes.
It runs fine from a CD or floppy. It's free for personal and (especially) business use. The program contains no adware, spyware, malware, popups, or whatever is the latest name for junk software. If you want to add it to a cd collection or magazine that is fine, just drop me an email.

You can also access this webpage using the shorter url http://halfdone.com/ukd


Unknown Devices Icon Current Version is 1.2, May 25, 2003


NoNags 5 Digi.no: Today's Neat Jewel (Norwegian) Software Zone 3 stars (Italian) Softnews.Ro 5/5 WebAtack 3 stars MajorGeeks

Screen Shots

ScreenShot, device details ScreenShot, With Unknown Devices ScreenShot, Compairs with Device Manager

Download Now

Download Now!
* Download latest pci update at Craig's website (right click, save link/target as...).

Other Download Options

Complete package

Zip file, no install. Includes the program itself and the pcidevs.txt file.

Size: 392k (402,080 bytes)
MD5: d92226faa64b9ebfc45916632d758eab

Major Geeks

Download the latest pci list from Craig Hart's Page (3rd download from the top).

35175 Downloads since July 20th. ~7000-10,000 before that.

Just the Program

Just the program EXE file. Can be copied ontop of an older version. pcidevs.txt still required.

Size: 306k (313,856 bytes)
MD5: b821d5300c2731aa00557d9c22b4ffac

Speakeasy Webspace

29618 Downloads since July 20th.

PEBuilder (BartPE) Plugin

Sherpya from netfarm.it has created a PEBuilder plugin for Unknown Devices. You can get it at http://oss.netfarm.it/winpe/. You can learn more about PEBuilder (a cd bootable version of WindowsXP-03) at http://www.nu2.nu/pebuilder/.

When you setup a PEBuilder CD you will have an option to ADD a plugin, just point it to this cab file.

Source Code

Borland C++ Builder 5 source code. Only for programmers, not for Huntersoft.

Size: 59.8k (61,252 bytes)
MD5: 955054e3af5688992071f3e073eeeb50

Halfdone.com HTTP
Halfdone.com FTP

26620 Downloads since July 20th.

Older Versions

You can download Version 1.0 here and You can download Version 1.1 here.

Thief Alert!

Heh, someone ripped my program. See these SOTWs for more information:

I think we should email him and his Order process companies and complain!

Change Log

Help file (kinda)




PCI detection is provided by Craig Hart's pcidevs.txt. See his webpage at http://members.datafast.net.au/dft0802 for updates to the file and more info.

Bugs? Suggestions?

Please email me here at catfish@halfdone.com with any bug reports or suggestions. Let me know if this program has helped you out!

If you find any unknown devices that this program says it doesn't know about, please provide this info to Craig Hart or email it to me and I'll pass it along. See Craig's webpage for details.

Links from Other Sites

Craig's Place GPick List of Lists NoNags
Digi.no: Today's Neat Jewel WinSite MajorGeeks
BitFreaks Mozeskriebel Software Zone
Freeware Guide Softnews.Ro Snapfiles (WebAtack)
Baramj Software Nana Clubic
Shell Extension City The Gazette Hello Duck
Adam Leinss Techie Files 1/2cut's Freeware List XSite
the this,that and whatnot blog Prospector-Freeware updates Ur I.T. Mate Group
The end of the Internet Simtel
PCuSER MoFunZone Jefferson Ryan
Axcel216's Max Speeed Software Seeker File hungry
IT Union Driver Heaven Langa List
SCC: Skip's Home Page Tiny Apps Soldaat.org
midpath.net Freeware World Team The Cave
PC Magazine RadiusVIP Clif's Notes
Asxetos (Greek) WilliamAFord.com


If you happen to know how to find out, using the registry, what devices are present or not present and/or If you know where you can get a complete list of unknown devices as windows reports them, like "Standard PCI Graphics Adapter" and "PCI Multimedia Audio Device" or even better know how to tell if windows knows it's an unknown device, drop me a line at catfish@halfdone.com. Especially under Win9x-ME. Thanks.

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Copyright(c) 2003 by Halfdone Development, Halfdone.com and Mike "catfish" Moniz.
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