What is patrolpro.dll?

Patrolpro.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 patrolpro.dll is a Windows system file or if it belongs to an application that you can trust.

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Patrolpro.dll file information

The process known as Notifies WinPatrol PLUS when new windows are created or destoyed or WinPatrol Helper DLL belongs to software BillP Studios New Window Detection or BillP Studios Window Detection by BillP Studios (

Description: Patrolpro.dll is not essential for the Windows OS and causes relatively few problems. Patrolpro.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 42,328 bytes (64% of all occurrences), 45,056 bytes, 64,728 bytes or 57,344 bytes. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. It can change the behavior of other programs or manipulate other programs. The program is not visible. There is no detailed description of this service. The patrolpro.dll file is not a Windows system file. Patrolpro.dll is certified by a trustworthy company. Patrolpro.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 62% dangerous.

Uninstalling this variant: You can uninstall the program WinPatrol, update it, or ask Customer Support for help. Go to to update it, go to for support, or go to WinPatrol in Windows Control Panel (Software or Programs section) to uninstall it.

Recommended: Identify patrolpro.dll related errors

Important: Some malware camouflages itself as patrolpro.dll. Therefore, you should check the patrolpro.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.


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Best practices for resolving patrolpro issues

A clean and tidy computer is the key requirement for avoiding problems with patrolpro. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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 DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the patrolpro.dll process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

patrolpro.dll [all]