Summary:
This FAQ helps if Directory Opus crashes, exits or uses high CPU when you open the right-click context menu for files or folders. These problems are usually caused by bugs in 3rd party components and this FAQ contains steps for finding and updating or disabling the faulty component.
See also:
- Crash, exit or high CPU usage when viewing certain directories
- How to find components causing high CPU usage
- How to find components causing memory leaks
- Crash dumps for bug reports
- General slowdown or instability investigation steps
Known Issues:
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Acronis True Image
Some versions of True Image have had shell extensions which trigger crashes or large memory leaks in Opus (sometimes in Explorer as well). As far as we are aware, current versions are OK, but if you have TI installed and are experiencing problems, you might want to try blocking its extensions to quickly rule them out, after verifying that you have the latest TI update installed. You can use the following CLSIDs to block them (more detail on how to do this below):
{C539A15A-3AF9-4C92-B771-50CB78F5C751} {9E42900A-85F9-4E67-9778-575FBBA0A81C} {934BC6C0-FEC2-4DF5-A100-961DE2C8A0ED} {00F848DC-B1D4-4892-9C25-CAADC86A215D} {71573297-552E-46FC-BE3D-3DFAF88D47B7} -
Daemon Tools
The Daemon Tools shell extension has been mentioned in some crash reports. Clearing out Daemon Tools' list of automatically-populated ISO files may solve the problem, if you don't want to block the extension.
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NOD32
The context menu added by NOD32 antivirus (version 8.x.x.x) does not crash but may add quite a bit of delay (about 1 second) to context menu opening, in both Opus and Explorer. If you're seeing this and have NOD32 installed, try disabling its context menu via NOD32's Advanced Settings window, under User Interface.
Older issues:
Most other known conflicts have been addressed by fixes & workarounds in Opus & the extensions themselves, or by newer versions of Opus automatically blocking certain extensions. However, old issues may still affect you if you are using a old versions of Opus or old versions of other software. Details on some of these issues have been moved into the reply to this post, below.
Notes:
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Viewing directories: If you are experiencing crashes when simply viewing a directory, rather than accessing a right-click menu, then you should read the separate FAQ entry about that issue. Other related guides are also linked at the top of this post.
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Definition of "high CPU": When this page says "high CPU" it means that something running inside of Opus has become stuck in a loop using as much CPU as it can get and doesn't stop until you exit or terminate the program. You'll see approximately 100% CPU usage on a single-core system, 50% a dual-core, 25% on a quad-core, and so on.
Main Information:
If you experience crashes, apparently spontaneous exits, or high CPU usage when you open the right-click context menu for a specific file, or types of files, within Directory Opus then the problem is almost certainly caused by a bad Send To shortcut, a bad context menu extension, or similar.
Send To Shortcuts:
If the Send To sub-menu take a long time to open, the problem will be one of the items within it. For example, shortcuts pointing to unavailable network paths may cause a 30 second delay on the menu opening.
If you think there is a problem with your Send To menu, try right-clicking the same files/folders in File Explorer and see if opening the Send To sub-menu there triggers the same problem.
Context Menu Extensions:
Problematic extensions sometimes have problems because they assume they are always being hosted inside File Explorer and go wrong within Directory Opus. Sometimes a bug in an extension will cause problems in both Opus and Explorer.
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Extremely Quick Fix:
If you need the crash fixed immediately you can usually just turn this on:Opus 13 & above:
- Preferences / Miscellaneous / Shell Extensions
- Hide Windows & third-party items on file context menus (Shift overrides)
Opus 12 & below:
- Preferences / Miscellaneous / Windows Integration
- Hide Windows items on file context menus (shift overrides)
That option removes non-Opus items from the right-click context menus within Opus. The removed items include those added by Explorer as well as those added by 3rd party context menu extensions.
With the option enabled you can still hold shift when right-clicking a file to see the full context menu. You can also add back specific items as explained in Tip: Organise and Speed-Up Context Menus.
Even if you're happy at this stage, it's in everyone's interests to track down what was causing the crash so that the problem can be fixed or worked around.
- Preferences / Miscellaneous / Shell Extensions
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Finding The Culprit:
When you're ready to look for the cause of the crash, turn off the Hide Windows items... option mentioned above.Verify you can still reproduce the crash, to avoid wasting time looking for a crash that no longer happens.
Turn on Opus's context menu diagnostics mode:
- Go to Preferences / Miscellaneous / Advanced.
- Turn on Troubleshooting: context_menu_debug.
(You do not need to exit or restart Opus for the change to take effect.)
Download the small DebugView tool from Microsoft and run it.
- DebugView does not require installation. Just unzip it somewhere.
- Ignore any error message about extracting Dbgv.sys as it doesn't affect what we're doing.
DebugView will now display messages from Opus when you right-click on files.
- Other programs may also send messages to DebugView. Not everything that you see will come from Opus.
- If you don't see anything when right-clicking a file, make sure Opus is not running elevated.
Right-click the file or folder that was causing the problem in Opus. You should see information in DebugView with various CLSID numbers, DLL paths, and sometimes names, representing the context menu extensions that Opus is talking to. For example:
CLSID: {CB3D0F55-BC2C-4C1A-85ED-23ED75B5106B} (FileSyncEx) (C:\Users\Leo\AppData\Local\Microsoft\OneDrive\17.3.6390.0509\amd64\FileSyncShell64.dll) CLSID: {23170F69-40C1-278A-1000-000100020000} (7-Zip Shell Extension) (C:\Program Files\7-Zip\7-zip.dll) CLSID: {2A118EB5-5797-4F5E-8B3D-F4ECBA3C98E4} (AccExt Class) (C:\Program Files (x86)\Adobe\Adobe Creative Cloud\CoreSyncExtension\CoreSync_x64.dll) CLSID: {B298D29A-A6ED-11DE-BA8C-A68E55D89593} (ANotepad++64) (C:\Program Files (x86)\Notepad++\NppShell_06.dll) CLSID: {85BBD920-42A0-1069-A2E4-08002B30309D} (Briefcase) (C:\WINDOWS\system32\syncui.dll) CLSID: {B089FE88-FB52-11D3-BDF1-0050DA34150D} (ESET Smart Security - Context Menu Shell Extension) (C:\Program Files\ESET\ESET NOD32 Antivirus\shellExt.dll) CLSID: {6351E20C-35FA-4BE3-98FB-4CABF1363E12} (MTShell Class) (C:\Program Files (x86)\Mp3tag\Mp3tagShell64.dll) CLSID: {A470F8CF-A1E8-4f65-8335-227475AA5C46} (Encryption Context Menu) (C:\WINDOWS\system32\shell32.dll)-
The cause of the problem is often the last item that you see printed, since things stopped working after that. This is not always the case -- sometimes one extension drops a banana peel which the next, innocent extension then falls over -- but it is the usual case.
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The information displayed is often enough to identify which program an extension is part of. Sometimes it isn't, if the authors of the extension used vague names for things. Searching Google for the CLSID number in {...}, or searching through the registry for the same number, will often quickly find clues about where the component is from, if it isn't immediately clear.
Having found the (potential) culprit, you can now turn off context_menu_debug.
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Disabling A Specific Extension:
You can instruct Opus to ignore a specific context menu extension. This is useful if it seems to be causing problems, or if it is simply unwanted and in the way.
Directory Opus 13 and above:
- Preferences / Miscellaneous / Shell Extensions
- Type the CLSID or other relevant details into the Search Shell Extensions field to find it, or browse for it in the list.
- Right-click the extension you want to block, and choose Block.
- Restart Opus via File > Exit Directory Opus. (Do not just close and re-open the window!)
Directory Opus 12 and below:
- Preferences / Miscellaneous / Advanced
- Double-click ignore_context_menus.
- A small window will appear. Paste the CLSID values, including curly braces, of the extension(s) you want to exclude, one CLSID per line.
- Restart Opus via File > Exit Directory Opus. (Do not just close and re-open the window!)
Alternatively, you can use ShellExView to disable an extension system-wide. This will also disable it in File Explorer, File Open dialog boxes, and so on. Be sure to use the x64 version of ShellExView, and reboot after making the change.
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If The Problem Remains:
If the problem remains after disabling the extension, it's possible an innocent extension was disabled and you haven't found the real culprit yet.
- Try disabling other extensions that the diagnostics point to, until the problem is resolved.
- To speed things up, disable all of them at once to start with, restart Opus, and check the problem is actually gone. If it isn't, we may be looking in the wrong place.
- If the problem is gone with all extensions disabled, try re-enabling a few at a time until it comes back. You can narrow things down quickly via that process.
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Reporting The Problem:
It is in everyone's interests for the problem to be reported so that it doesn't occur on other people's computers and so you can get your context menu items, assuming you wanted to use them.
If you track down your problem to a particular context menu extension then please report it here at the forum, and to the extension's authors.
- By reporting it to us: We may be able to add a workaround to Opus, even if the problem is in something else. It also helps other people with the same problem find answers.
- Reporting it to the extension's authors: They are ultimately the only people who can examine and fix bugs in their code, and the bug may cause problems in other programs, not just in Opus.
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Crash dump investigation:
If you cannot find the cause using the methods above, and the problem is a full crash, then there should be a crash dump corresponding to the time of each crash.
We'll only look at dumps from people with linked accounts. Please start a thread if you wish to send them to us, with details of what's going wrong and what you have tried already, and we can advise further.
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Freeze / High CPU dump investigation:
If the problem is freezing or high CPU usage, rather than a crash, then you can make Windows generate a similar dump file which we can use to see what was happening inside Opus at the time: Manually generating process snapshots.
Further Information:
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If you are also having problems right-clicking files in Explorer then you may find this external guide helpful: windowsxp.mvps.org/slowrightclick.htm
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NirSoft's ShellExView is a tool that lets you see which shell extensions are on your machine, and disable them. Similar to Preferences / Miscellaneous / Shell Extensions in Opus, but it affects all processes, not just Opus.
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Microsoft's AutoRuns can also be used to see and disable shell extensions (among many other startup items and system plug-ins).
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Memory leaks aren't always the process's fault at the Directory Opus blog describes using debugging tools and techniques to track down a 3rd party shell extension which was leaking a gig of memory.
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A list of other related FAQs is linked at the top of this post.