Content indexing crashes with ppt/pptx files — Everything 1.5.0.1412b (x64)

[Herman]

Everything 1.5.0.1412b (x64) on Windows 11 26200.

Environment

• Content indexing enabled for E:\, F:\, D:\
• File types: *.doc;*.docx;*.pdf;*.txt;*.xls;*.xlsx;*.md;*.html;*.csv;*.ppt;*.pptx
• Max file size: 1 GB
• Running as Administrator with Everything Service

Symptoms
Everything crashes silently (no error dialog) within 1–2 minutes of startup. Debug log ends abruptly with no error message.

Root cause isolated
After narrowing down file types one by one, the crash disappeared when *.ppt and *.pptx were removed from content indexing. With these two excluded, Everything has been running stable for over an hour with all other types fully indexed.

Crash analysis (Windows Event Log)
All 10+ crashes are identical in Event Viewer:

Code: Select all

Faulting module:   ucrtbase.dll
Exception code:    0xc0000409  (STATUS_STACK_BUFFER_OVERRUN)
Fault offset:      0x00000000000a4aee

Stack buffer overrun in the C runtime, triggered consistently when the ppt/pptx iFilter is invoked during content indexing.

Attachments available
Crash dumps (10+) and debug log available on request.

[tuska]

Hi,

Everything 1.5.0.1412b (x64), when run as a user and using the Everything Service,
has no problem finding file contents in *.ppt and *.pptx files.

Windows 11 Pro (x64) Version 25H2 (OS build 26200.8457) - 2026-05-11

[horst.epp]

ppt and pptx are indexing fine in Everything here.

The iFilter search module for pptx in my system
offfiltx.dll Office Open XML Format PowerPoint Filter Microsoft Office Open XML Format Filter 2010.1400.7104.5000 2010.1400.7104.5000 Microsoft Corporation C:\Program Files\Common Files\Microsoft Shared\Filters\offfiltx.dll {4F46F75F-199F-4C63-8B7D-86D48FE7970C} {DDFE337F-4987-4EC8-BDE3-133FA63D5D85} 03.08.2025 17:52:25

The iFilter search module for ppt in my system
OFFFILT.DLL Microsoft Office Filter Microsoft Office IFilter 2010.1400.6119.5000 2010.1400.6119.5000 Microsoft Corporation C:\Program Files\Common Files\Microsoft Shared\Filters\OFFFILT.DLL {98de59a0-d175-11cd-a7bd-00006b827d94} {64F1276A-7A68-4190-882C-5F14B7852019} 03.08.2025 17:52:25

This information can be found and assigned with this Nirsoft tool
https://www.nirsoft.net/utils/search_filter_view.html
______________________________________________________
Windows 11 Home Version 25H2 (OS Build 26200.8457)
Everything 1.5.0.1412b (x64), Everything Toolbar 2.3.0
Total Commander 11.57 x64 / x86

[void]

Thank you for the crash report Herman,

I am aware of the issue.
This is a bug in the current Microsoft Office iFilter.

I don't have a solution at this stage.
Please exclude ppt/pptx files from your content index / content search.

Please try searching your system index from Everything with si:
For example:

*.pptx si:"my content search"