Fixing Missing Microsoft Activex Data Objects 61 Library Error in Visual Basic and Excel
Missing Microsoft Activex Data Objects 61 Library: How to Fix It
Microsoft Activex Data Objects (ADO) is a technology that enables you to access and manipulate data from a database server through an OLE DB provider. ADO is widely used by developers to create client/server and web-based applications that work with data. However, sometimes you may encounter an error message that says "Missing Microsoft Activex Data Objects 61 Library" when you try to use ADO in your code. This article will explain what this error means, why it occurs, and how to fix it.
Missing Microsoft Activex Data Objects 61 Library
What is Microsoft Activex Data Objects 61 Library?
Microsoft Activex Data Objects 61 Library is a file that contains the definitions and implementations of the ADO objects, methods, properties, and events. The file name is msado15.dll, and it is usually located in the C:\Program Files\Common Files\System\ado folder. The version number 6.1 indicates that this file is compatible with ADO 6.1, which is the latest version of ADO as of this writing.
ADO 6.1 was released in 2012 as part of the Microsoft SQL Server Feature Pack. It supports new features such as asynchronous operations, bulk copy, table-valued parameters, and spatial data types. It also provides improved performance and security for accessing data from SQL Server and other data sources.
Why is Microsoft Activex Data Objects 61 Library Missing?
There are several possible reasons why Microsoft Activex Data Objects 61 Library may be missing from your system. Some of them are:
You have not installed ADO 6.1 on your computer. ADO 6.1 is not included in the standard installation of Windows or Office, so you need to download and install it separately from the Microsoft website.
You have installed ADO 6.1 on your computer, but the file msado15.dll is corrupted or deleted by mistake. This may happen due to a virus infection, a disk error, or a human error.
You have installed ADO 6.1 on your computer, but the file msado15.dll is not registered properly in the Windows registry. The registry is a database that stores information about the installed programs and components on your system. If the registry entry for msado15.dll is missing or incorrect, Windows will not be able to locate and load the file when you use ADO.
You have installed another version of ADO on your computer that conflicts with ADO 6.1. For example, if you have installed ADO 2.8 or ADO.NET on your system, they may overwrite or interfere with the file msado15.dll or its registry entry.
How to Fix Missing Microsoft Activex Data Objects 61 Library?
To fix missing Microsoft Activex Data Objects 61 Library, you need to perform the following steps:
Check if you have installed ADO 6.1 on your computer. You can do this by opening the Control Panel, clicking on Programs and Features, and looking for Microsoft SQL Server Feature Pack in the list of installed programs. If you do not see it, you need to download and install it from this link. Make sure you select the correct version for your operating system (32-bit or 64-bit).
Check if the file msado15.dll is present in the C:\Program Files\Common Files\System\ado folder. If not, you need to copy it from another computer that has ADO 6.1 installed, or download it from this link. Make sure you select the correct version for your operating system (32-bit or 64-bit).
Register the file msado15.dll in the Windows registry. You can do this by opening the Command Prompt as an administrator, and typing the following command: regsvr32 C:\Program Files\Common Files\System\ado\msado15.dll. You should see a message that says "DllRegisterServer in msado15.dll succeeded".
Restart your computer and try to use ADO in your code again. If you still get the error message, you may need to update or repair your Windows registry using a reliable registry cleaner tool.
In this article, we have explained what Microsoft Activex Data Objects 61 Library is, why it may be missing from your system, and how to fix it. We have also provided a step-by-step guide to install, copy, register, and troubleshoot the file msado15.dll, which contains the ADO 6.1 components. By following these steps, you should be able to resolve the error message and use ADO in your code without any problems.
We hope you have found this article helpful and informative. If you have any questions or feedback, please feel free to leave a comment below. Thank you for reading!
What is ADO?
ADO stands for Activex Data Objects, which is a technology that allows you to access and manipulate data from a database server through an OLE DB provider.
What is OLE DB?
OLE DB stands for Object Linking and Embedding Database, which is a standard interface that enables different data sources to communicate with each other.
What is the difference between ADO and ADO.NET?
ADO.NET is the successor of ADO, which is designed for web-based applications that use XML and HTTP protocols. ADO.NET is more scalable, flexible, and secure than ADO, but it also requires more coding and configuration.
How can I check the version of ADO on my system?
You can check the version of ADO on your system by opening the Visual Basic Editor in Excel or Word, clicking on Tools, References, and looking for Microsoft Activex Data Objects Library in the list of available references. The version number will be displayed next to the library name.
How can I update or downgrade the version of ADO on my system?
You can update or downgrade the version of ADO on your system by downloading and installing the appropriate Microsoft SQL Server Feature Pack from the Microsoft website. You can also change the reference to a different version of ADO in your code by using the CreateObject function instead of the New keyword. dcd2dc6462