What is ZDPSp50?

ZDPSp50.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if ZDPSp50.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for ZDPSp50 drivers in need of updating

ZDPSp50.sys file information

The process known as PCAUSA NDIS (version 5.0 SPR Protocol Driver) belongs to software ZDPSp50 NDIS Protocol Driver or PCAUSA Rawether for Windows by Printing Communications Assoc., Inc. (PCAUSA) (

Description: ZDPSp50.sys is not essential for Windows and will often cause problems. The ZDPSp50.sys file is located in the C:\Windows\System32\drivers folder. The file size on Windows 10/8/7/XP is 17,664 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. There is no detailed description of this service. The ZDPSp50.sys file is not a Windows system file. ZDPSp50.sys appears to be a compressed file. Therefore the technical security rating is 26% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you still experience problems with ZDPSp50.sys, you can also completely remove Wireless LAN USB Dongle (Control Panel ⇒ Uninstall a Program).

Recommended: Identify ZDPSp50.sys related errors

Important: Some malware camouflages itself as ZDPSp50.sys. Therefore, you should check the ZDPSp50.sys 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

ZDPSp50PCAUSA NDIS 5.0 SPR Protocol Driver (Not verified) Printing Communications Assoc., Inc. (PCAUSA) I believe this driver to be part of the HP Laserjet remote printer driver package.

Summary: Average user rating of ZDPSp50.sys: based on 1 vote with 1 user comment. One user thinks ZDPSp50.sys is dangerous and recommends removing it. One user is not sure about it.

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Best practices for resolving ZDPSp50 issues

A clean and tidy computer is the key requirement for avoiding problems with ZDPSp50. 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 ZDPSp50.sys 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

ZDPSp50.sys [all]