In December 2022, Microsoft has released KB5022083, a security update that changes how .NET Framework and .NET handle XPS content. So many apps built with WPF started to render incorrectly. While Microsoft provided a workaround along with the release of the patch, the issue still affects plenty of users.
Due to the changes in .NET, XPS documents with structural or semantic elements like table structure, storyboards, or hyperlinks may not display correctly in WPF-based readers. It may also break inline images. The app that show the XPS data may throw Null reference exceptions when XPS documents are loaded into WPF-based readers.
As a workaround, Microsoft suggested running the following command as Administrator in cmd.exe:
reg add "HKLM\SOFTWARE\Microsoft\.NETFramework\Windows Presentation Foundation\XPSAllowedTypes" /v "DisableDec2022Patch" /t REG_SZ /d "*" /reg:64
Finally, the Redmond firm managed to resolve the issue with the following out-of-band updates. Note that none of them are available via Windows Update, so you have to install them manually.
| Product Version | Update | |
|---|---|---|
| Windows 11, version 22H2 | ||
| .NET Framework 4.8.1 | Catalog | 5023327 |
| Windows 11, version 21H2 | Catalog | 5023367 |
| .NET Framework 4.8 | Catalog | 5023323 |
| .NET Framework 4.8.1 | Catalog | 5023320 |
| Windows Server 2022 | Catalog | 5023368 |
| .NET Framework 4.8 | Catalog | 5023324 |
| .NET Framework 4.8.1 | Catalog | 5023321 |
| Azure Stack HCI, version 22H2 | ||
| .NET Framework 4.8 | Catalog | 5023324 |
| Azure Stack HCI, version 21H2 | ||
| .NET Framework 4.8 | Catalog | 5023324 |
| Windows 10 Version 22H2 | Catalog | 5023366 |
| .NET Framework 4.8 | Catalog | 5023322 |
| .NET Framework 4.8.1 | Catalog | 5023319 |
| Windows 10 Version 21H2 | Catalog | 5023365 |
| .NET Framework 4.8 | Catalog | 5023322 |
| .NET Framework 4.8.1 | Catalog | 5023319 |
| Windows 10 Version 20H2 | Catalog | 5023364 |
| .NET Framework 4.8 | Catalog | 5023322 |
| .NET Framework 4.8.1 | Catalog | 5023319 |
| Windows 10 1809 (October 2018 Update) and Windows Server 2019 | Catalog | 5023363 |
| .NET Framework 4.7.2 | Catalog | 5023333 |
| .NET Framework 4.8 | Catalog | 5023326 |
| Windows 10 1607 (Anniversary Update) and Windows Server 2016 | Catalog | 5023416 |
| .NET Framework 4.7.2 | Catalog | 5023332 |
| .NET Framework 4.8 | Catalog | 5023325 |
Finally, if you are about to go with one of these KBs, it is a good idea to undo any workaround you have used before installing it. For the above mentioned command, you can run this undo command, again as Administrator:
reg delete "HKLM\SOFTWARE\Microsoft\.NETFramework\Windows Presentation Foundation\XPSAllowedTypes" /reg:64 /f
Support us
Winaero greatly relies on your support. You can help the site keep bringing you interesting and useful content and software by using these options: