dotnet/Documentation/compatibility/wpf-spell-checking-fail-in-unexpected-ways.md

WPF Spell Checking fails in unexpected ways

Scope

Edge

Version Introduced

4.6.1

Version Reverted

4.6.2

Source Analyzer Status

Not planned

Change Description

This includes a number of WPF Spell Checker issues:

• WPF Spell Checker sometimes throws xref:System.Runtime.InteropServices.COMException?displayProperty=name

• WPF Spell Checker fails with xref:System.UnauthorizedAccessException when applications are launched using 'run as different user'

• WPF Spell Checker incorrectly identifies spelling errors in compound words like 'Hausnummer' in German.

• Quirked

• Build-time break

Recommended Action

Issue #1 - This has been fixed in .NET Framework 4.6.2 Issue #2 - WPF Spell Checker is no longer supported when applications are launched using 'run as different user'. Starting .NET Framework 4.6.2, applications launched in this manner will no longer crash unexpectedly - instead the Spell Checker will be silently disabled. Issue #3 - This has been fixed in .NET Framework 4.6.2.

Affected APIs

• Not detectable via API analysis

Category

Windows Presentation Foundation (WPF)