Overview
What is UI Accessibility Checker?
UI Accessibility Checker : Discover accessibility problems with Microsoft Active Accessibility
In depth
A closer look at UI Accessibility Checker
UI Accessibility Checker (or AccChecker) was developed to be a small tool which enables testers to easily discover accessibility problems with Microsoft Active Accessibility (MSAA) and other User Interfaces (UI) implementations for Windows. AccChecker was born from the realization that existing Windows Automation API tools, such as Inspect, provided in-depth details on the implementation, but no information whether that implementation is correct or not.AccChecker comes in three modes – a Graphical User Interface (GUI) tool for the initial investigations of UIs, a set of simple APIs for easily creating automatic test cases, and a command-line tool for batch processing. Using the GUI tool, a tester can easily scan a UI and review the list of errors and warnings.Then, using the per-issue documentation, the tester can determine why each particular issue has occurred, what the implications may be on users with disabilities, and how to fix the issue. Once all issues have been fixed, the tester can use the APIs to create regression tests. Finally, if the APIs cannot be used for any reason, the tester can use the command-line mode of the tool to create tests in a batch file.AccChecker uses a plug-in architecture, which allows 3rd party developers to create additional verifications. The verifications provided in AccChecker out-of-the-box include:- Verifications for MSAA and UIA- Verifications for the MSAA and UIA tree integrity, such as child-parent relationships or bounding rectangles- Verification for keyboard navigation by tabbing- A simplified screen reader which shows the textual information available to a real screen reader
Requirements
System requirements
Windows 7 64 bit / Windows 7 / Windows Vista 64 bit / Windows Vista / Windows XP 64 bit / Windows XP / Windows 2000
Verdict
Should you download UI Accessibility Checker?
UI Accessibility Checker runs on
Windows 10/11
and is available under the
MS-PL
license
— the installer is 773 KB.
We’ve catalogued it under
General.
✓
Verified clean. Every UI Accessibility Checker build on SoftLookup is scanned for viruses, spyware, adware, trojans and backdoors. We re-test on every update.
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At a glance
UI Accessibility Checker specifications
- Publisher
-
AccChecker
- Last updated
- Apr 30, 2026
- Requirements
- Windows 7 64 bit / Windows 7 / Windows Vista 64 bit / Windows Vista / Windows XP 64 bit / Windows XP / Windows 2000
- License
- MS-PL
- Operating system
- Windows 10/11
- File size
- 773 KB
- Price
- Free
- Page views
- 570
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