Comments on: The Specified Port Is Unknown

By: terry wlson

terry wlson — Tue, 16 Mar 2010 16:12:17 +0000

the info you provided was helpful but did not solve my problem….Iam trying to install an epson cx8400….at wits end…..thanks.

Missing Virtual Printer ports for USB « Lee's Technology Journal — Fri, 05 Mar 2010 14:14:10 +0000

[...] I found a solution over at ghacks.net. [...]

Bram de Heer — Thu, 18 Jun 2009 23:20:01 +0000

Thanks.

Paste text below into notepad, save as file usbmon.reg, double click to enter into registry:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlPrintMonitorsUSB Monitor]
“Driver”=”usbmon.dll”

Pete — Tue, 10 Mar 2009 12:17:48 +0000

Hi guys, I am having same problem with my new notebook. I have tried 3 printers without success.

Brother tech support suggested your comments. I have followed the instructions but the USB driver is there. Any other ideas???

Thanks P.

AJ — Wed, 18 Feb 2009 08:11:48 +0000

Thanks a LOT

This really helped me!

/AJ

danny — Wed, 04 Feb 2009 03:07:17 +0000

thanks alot….. I have been going crazy trying to figure this out and it finally worked…. thanks alot….

Dave — Tue, 06 Jan 2009 21:04:30 +0000

Thanks for this. Had been trying for months to get my printer working and this sorted it out. Cheers mate.