DLL Tool

urlmon.dll crash Outlook

May 12, 2014

DLL ToolDLL Tool downloads urlmon.dll repairs crash problem for Outlook 2003 and 2010 in PCs running Microsoft Windows 8.1/8/7/XP/Vista OS, both 32 and 64 bits.

What is urlmon.dll?

Urlmon.dll is a kind of the Uniform Resource Locator (URL) monikers DLL. The urlmon.dll file moniker is a system-provided moniker class that supports asynchronous binding to a URL. The urlmon.dll module allows the moniker functionality.

A moniker identifies an object and provides services to allow other components to obtain a pointer to that object. The moniker contains information about an object as well as the instructions for connecting to it.

Urlmon.dll is used to help load the Object Linking and Embedding library on your PC. This is basically a framework of files & settings that your software is dependant on incorporating the likes of hyperlinks & other objects into your programs.

What is urlmon.dll Outlook crash?

  1. Running Outlook 2003 on a Terminal server and out of the blue, an error came up saying: Ordinal 459 could not be located in the dynamic link library urlmon.dll.
  2. When you click ok, it looks fine but then when you try opening emails, you will get prompted for the same error. Another error comes up after trying to open an email: Can't open this item. The text formatting command is not available. It may not be installed correctly. Please install Outlook again.

Why do I have urlmon.dll Outlook crash?

If you have Outlook crash errors caused by urlmon.dll, it suggests that you have some sort of problem either with the file or the software trying to use it; the software can be Outlook or something else.

Sometimes, this is a problem with outlook trying to render HTML content in a window somewhere. Perhaps the DLL is corrupt, out of date, or somehow not linked properly.

Or some input is not processed correctly. An attacker may try to find the code path that leads to the faulty procedure and attempt to execute arbitrary code through potential vulnerabilities.

Crashes may give an attacker valuable information about the system and its internal details. Crashes may create temporary vulnerabilities or leave unprotected files (e.g. memory dumps) that may be exploited.

The application that crashes needs to be restarted, which obviously takes time. If an attacker replicates the conditions leading to the crash, your service will suffer from prolonged outage (Denial-of-service) which means financial, reputation, and other losses.

Approaches to fixing the issue

Solution 1

Try to register Urlmon.dll.

1. Log into the computer as an administrator.
2. Click on start and then click on run.
3. Type in cmd and press enter.
4. Type rereg urlmon.dll and press enter.

Solution 2

1. Run detect and repair of outlook.
2. Repair/install of outlook via add/remove programs.
3. Re-registered urlmon.dll and ole32.dll.
4. Disabled AVG antivirus temporarily, reopened outlook.

Solution 3

The source of the problem may the signature file, which is corrupted somehow. Just clear out the signature from the bottom of the body of the message and recreate it by copying the signature from an old sent email.

And it is advisable to apply DLL TOOL to check the settings of Outlook and the associated applications for any issue, and eliminate the potential factors for a future Urlmon.dll crash.