What is Oleacc.dll?

Oleacc.dll is a Dynamic Link Library (DLL) file developed by Microsoft for the Windows Operating System. The file is associated with Active Accessibility Core Component, which is a part of the Windows OS. DLL files, like oleacc.dll, contain code, data, and resources that multiple programs can use simultaneously.

The associated software, Active Accessibility Core, is a component of Microsoft Windows. It provides a way for assistive technology applications to interact with standard and custom user interface (UI) elements of an application (or the operating system), as well as to manipulate those elements. This is particularly useful for users with disabilities, as it allows software like screen readers and magnifiers to function properly.

Oleacc.dll is needed because it contains important instructions that other programs use to function properly. Without it, these programs may not work correctly or could crash. It's particularly important for accessibility tools, as they rely on it to interact with other software.

You should not remove oleacc.dll as it is a critical system file. If the file becomes corrupted or infected with a virus, it may cause errors. In such cases, the file might need to be removed or replaced. Always ensure to replace it with a clean, virus-free version, and only do so under the guidance of a knowledgeable computer expert to avoid causing further issues.

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Oleacc.dll file information

The process known as Active Accessibility Core Component belongs to software Microsoft Windows Operating System by Microsoft (www.microsoft.com).

Description: Oleacc.dll is not essential for the Windows OS and causes relatively few problems. Oleacc.dll is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/11/7 are 306,688 bytes (23% of all occurrences), 233,472 bytes and 4 more variants.
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. The program has no visible window. The Oleacc.dll file is a trustworthy file from Microsoft. The file is not a Windows core file. The service has no detailed description. The Oleacc.dll file is able to record keyboard inputs. Oleacc.dll is able to manipulate other programs and record keyboard and mouse inputs. Therefore the technical security rating is 56% dangerous.

Recommended: Identify Oleacc.dll related errors

Important: Some malware disguises itself as Oleacc.dll, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the Oleacc.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 Oleacc issues

A clean and tidy computer is the key requirement for avoiding problems with Oleacc. 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 executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To get your computer running as fast as it did on day one, you can 8reset your PC. Your personal files will remain intact, but any programs you installed will need to be reinstalled.

To help you analyze the Oleacc.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. A good Bantivirus software detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

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