What is HPZinw12.dll?

The genuine HPZinw12.dll file is a software component of Dot4Net Module by Hewlett-Packard.
The Dot4Net driver available in most current HP machines, this DLL is a driver that allows your Dot4Net software to communicate with the hardware of your computer. Based in Palo Alto, California, HP has been the world's leading PC manufacturer since 2007.

HPZinW12 stands for Hewlett Packard Z Net Driver in Windows version 12

HPZinw12.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. The following information can help you determine if HPZinw12.dll is a Windows system file or if it belongs to an application that you can trust.

Click to Run a Free Scan for HPZinw12.dll related errors

HPZinw12.dll file information

The process known as Dot4Net Module or Net Driver HPZ12 (Net Driver HPZ12) belongs to software 32 Bit HP CIO Components Installer or 32 Bit HP CIO Components or Net Driver HPZ12 (Net Driver HPZ12) or 32 Bit HP BiDi Channel Components or 32 Bit HP BiDi Channel by Hewlett-Packard ( or HP (

Description: HPZinw12.dll is not essential for Windows and will often cause problems. HPZinw12.dll is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 44,032 bytes (42% of all occurrences), 43,520 bytes, 44,544 bytes, 45,568 bytes or 4,195,067 bytes. 
The service can be started or stopped from Services in the Control Panel or by other programs. The program is not visible. There is no detailed description of this service. The HPZinw12.dll file is not a Windows system file. The process can be removed using the Control Panel's Add\Remove programs applet. HPZinw12.dll is able to manipulate other programs. Therefore the technical security rating is 27% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you encounter difficulties with HPZinw12.dll, you may also safely remove the program using the uninstall program of 32 Bit HP CIO Components Installer or 32 Bit HP CIO Components (Control Panel ⇒ Uninstall a Program).

Recommended: Identify HPZinw12.dll related errors

Important: Some malware disguises itself as HPZinw12.dll, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the HPZinw12.dll process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

Looks alright to me.
  Montekristo   (further information)
hpzinw12.dll is part of Bidi User Mode developed by Hewlett-Packard located in C:\Windows\system32\hpzinw12.dll
Net Driver HPZ12 Dot4Net Module Hewlett Packard

Summary: Average user rating of HPZinw12.dll: based on 3 votes with 3 user comments. 2 users think it's probably harmless. One user thinks it's neither essential nor dangerous. One user is not sure about it.

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Best practices for resolving HPZinw12 issues

A clean and tidy computer is the key requirement for avoiding problems with HPZinw12. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the HPZinw12.dll process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

HPZinw12.dll [all]