The is a COM-based type library that exposes the entire Outlook object model to external applications. It is the “official blueprint” that allows developers to use Outlook’s functionality from environments like VBA, Visual Studio, or other COM-compatible languages.
The library is typically contained in an .OLB (Object Library) file rather than a standard .DLL . For Outlook 16.0, this file is named MSOUTL.OLB . Where to Find MSOUTL.OLB on Your System
If the reference is "missing," it is usually because the file path has changed or the Office installation is corrupted. You can manually find the file in the following default locations:
Searching for a "MSOUTL.OLB download" or a DLL fix on third-party websites is . microsoft outlook 16.0 object library dll download
Look for "Microsoft Outlook 16.0 Object Library" in the list and check the box. If not listed , navigate to the paths mentioned above, and select MSOUTL.OLB Stack Overflow Troubleshooting
is the recommended professional approach. This method does not require a specific library reference to be checked in the "References" menu. Stack Overflow
The library is a COM (Component Object Model) interface that allows external applications, such as Excel or Word, to interact with and control Microsoft Outlook via Visual Basic for Applications (VBA). It is automatically installed when the "Classic" Outlook application is installed on a Windows system. Microsoft Learn Locating the Library Locally The is a COM-based type library that exposes
You generally cannot download the as a standalone DLL or library file. This library is part of the Outlook installation itself and is typically provided by a file named MSOUTL.OLB .
In late binding, you use the CreateObject function to create an Outlook application instance. This means you don't need to add a reference to the Outlook library in the VBA editor.
If it is missing, click and navigate to the paths listed above to select MSOUTL.OLB manually. Common Issues & Solutions For Outlook 16
Click on the Office listing and click the button at the top of the window. Select Quick Repair and click Repair .
regsvr32 "C:\full\path\to\OUTLLIB.DLL"
Depending on your installation (Click-to-Run, MSI, or Store App), the actual files might reside in one of these locations: