Outlook crashes when opening Calendar invitation

Outlook crashes when opening Calendar invitation

Story Highlights

Outlook crashes when opening Calendar invitation

How to fix Outlook crashes when opening Calendar invitation

Outlook users encounter an error whenever they attempt to open their calendar, Outlook stops responding and closes. Their Outlook crashes when opening calendar invitation and prompts an error “Microsoft Outlook has stopped working”.

Error Message

Microsoft Outlook has stopped working. Windows can check online for a solution to the problem and try to recover your information and restart the program.

Faulting application name: OUTLOOK.EXE, version: 16.0.14430.20298, time stamp: 0x61611dfd
Faulting module name: wwlib.dll, version: 16.0.14430.20292, time stamp: 0x615f71fb
Exception code: 0xc0000005
Fault offset: 0x00000000019326ae
Faulting process id: 0x5e34
Faulting application start time: 0x01d7c160efcf5cba
Faulting application path: C:\Program Files\Microsoft Office\root\Office16\OUTLOOK.EXE
Faulting module path: C:\Program Files\Microsoft Office\root\Office16\wwlib.dll
Report Id: b003da3f-f25b-4389-a430-feb1b0128aa4

You might want to read about Outlook is not recognized as the default email client.

Causes of Outlook crashes when opening Calendar invitation

Below mentioned are the various potential triggers that make Outlook crashes when opening calendar invitation:

  • Add-ins or Extensions causing the issue
  • Corrupted Office installation
  • Corrupted WWLIB.DLL file

Resolution of Outlook crashes when opening Calendar invitation

Performing the below-mentioned solutions and workaround help you to avoid Outlook crashes when opening a calendar invitation

  • Disable Third-Party Add-ins
  • Uninstall or Remove KB2817631
  • Replace WWLIB.DLL File
  • Repair Microsoft Office

1. Disable Third Party Add-ins

Faulty or Corrupted addins can cause Outlook crashes when opening Calendar invitation. Starting Outlook in Safe Mode can let you safely use it while it has encountered problems. This is helpful when you can’t open a file in normal mode because the application is crashing or there is an extension or add-in causing a problem on startup.

In safe mode, the Outllok may not open with the options provided by addins but can perform basic operations.

  • Find the shortcut icon of Outlook.
  • Press and hold the CTRL key and double-click the Outlook icon shortcut.
  • Click Yes on the prompt to start the application in Safe Mode. Or Press Windows+R keys to open the Run box. Type “outlook/safe” into the “Open” field, and then hit Enter or click on Ok to launch Outlook in Safe mode.
  • Once Outlook is open click on File > Manage Add-ins.
  • Under Manage add-ins, in the Turned on column, uncheck the box for the add-in you want to turn off.

If Outlook fails to open in Safe Mode, you may be required to reinstall the application from a reliable resource.

Manage Add-ins Outlook
COM Add-ins

2. Uninstall or Remove KB2817631

Microsoft has pushed out an update for Outlook 2013 named KB2817631 For some users this resulted in a crash in outlook when they opened a Calendar Item, this was only happening on Invitations.

The solution to resolve this problem is quite easy all you have to do is delete this particular update.

  • Go to Start and click on Control Panel.
  • From Category view, under Programs, click on Uninstall a program. or Press Windows+R keys to open the Run box. Type “appwiz.cpl” into the “Open” field, and then hit Enter or click on Ok to launch Programs and Features.
  • From Programs and Features, on the Left pane, click on View installed updates.
  • In Installed updates, you will find all the updates installed. From this list search for the 2817631 update.
  • Once you find the update, select the update and click on Uninstalled to remove it from  the system.
  • Restart rhe system once the update is completely removed from the system.

Now try to open the Outlook, perform the actions in the Calendar to ensure if it’s working fine.

View Installed Updates
Uninstall Windows Update

3. Replace WWLIB.DLL File

WWLIB.DLL file is part of Microsoft Office system. Outlook crashes when opening Calendar invitation also caused due to corrupted WWLIB.DLL file. We need to replace the WWLIB.DLL file in order to avoid Outlook crashes when opening Calendar invitation.

For Outlook 2016

  • Close Outlook.
  • Navigate to following locations as per bitness of the Office installation
    • 32 Bit : C:PROGRAM FILES (X86)/MICROSOFT OFFICE/OFFICE16
    • 64 Bit : C:PROGRAM FILES/MICROSOFT OFFICE/OFFICE16
  • Rename WWLIB.DLL to WWLIB-ORIG.DLL
  • Download the WWLIB.DLL file and place in the same location as per the bitness

For Outlook 2013

  • Close Outlook.
  • Navigate to following locations as per bitness of the Office installation
    • 32 Bit : C:PROGRAM FILES (X86)/MICROSOFT OFFICE/OFFICE15
    • 64 Bit : C:PROGRAM FILES/MICROSOFT OFFICE/OFFICE15
  • Rename WWLIB.DLL to WWLIB-ORIG.DLL
  • Download the WWLIB.DLL file and place in the same location as per the bitness

4. Repair Office installation

Corrupted Office installation can also cause Outlook crashes when opening Calendar invitation. Try to fix the problem by repairing the Office installation.

  • Go to Start and click on Control Panel.
  • From Category view, under Programs, click on Uninstall a program. or Press Windows+R keys to open the Run box. Type “appwiz.cpl” into the “Open” field, and then hit Enter or click on Ok to launch Programs and Features.
  • Select the Office product you want to repair, and then click Change.
  • Depending if your copy of Office is Click-to-run or an MSI-based install, do the following for your Office installation type:
    • Click-to-Run installation type: In How would you like to repair your Office Programs, select Quick Repair to detect and replace corrupted files and then select Repair.
    • MSI-based installation type: In Change your installation, select Repair and then click Continue.
  • Follow the remaining instructions on the screen to complete the repair.
Repair Office installation

Frequently Asked Questions

  1. Why does my Outlook crashes when opening calendar invitation?

    Microsoft Outlook crashes when opening calendar invitation due to faulty or corrupted add-ins, corrutped or missing DLL files, or corrupted Office installation.
  2. What causes Outlook to stop working?

    Outlook can stop working due to faulty or corrupted add-ins, corrutped or missing DLL files, or corrupted Office installation.
  3. How do I get my outlook to work again?

    Start your Outlook in safe mode. Press Windows+R keys to open the Run. Type “outlook /safe” and hit Enter to launch Outlook in Safe mode. Disable the third-party add-ins and try using Outlook. If the issue still persists, consider repairing your Office installation.

Related posts

Leave a Reply

Your email address will not be published. Required fields are marked *