Steps to reproduce:

1. Use NVDA alpha version nvda_snapshot_alpha-24771,a1a6598b.exe or above.
2. Open Notepad++ v8.1.x or v8.2.x 64-bit.
   3.Press up/down a few times.

Actual behavior:

Notepad++ crashes. No error message is printed in NVDA log.

Expected behavior:

Notepad++ should not crash.

System configuration

NVDA installed/portable/running from source:

Portable alpha nvda_snapshot_alpha-24771,a1a6598b.exe

NVDA version:

nvda_snapshot_alpha-24771,a1a6598b.exe

Windows version:

Reproduced on both Windows 10 and 11 64-bit.

Name and version of other software in use when reproducing the issue:

Reproduced using either of these two versions (64-bit in both cases):

• Notepad++ v8.1.9.3: https://github.com/notepad-plus-plus/notepad-plus-plus/releases/download/v8.1.9.3/npp.8.1.9.3.portable.x64.zip
• Notepad++ v8.2.1: https://github.com/notepad-plus-plus/notepad-plus-plus/releases/download/v8.2.1/npp.8.2.1.portable.x64.zip

Other information about your system:

N/A

Other questions

Does the issue still occur after restarting your computer?

Yes

Have you tried any other versions of NVDA? If so, please report their behaviors.

Identified that commit a1a6598 is causing this, therefore cc: @lukaszgo1.

If NVDA add-ons are disabled, is your problem still occurring?

Yes

Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?

Yes