7 Expert Tips for Access “Run Time Error 48 Error in Loading DLL”!

Encountering run time errors while handling Access databases can be a nuisance, disturbing our workflow & causing hindrance. Among these, “run time error 48 Error in loading DLL” is a common error that occurs when trying to run the query wizard, report wizard, or control wizard in Microsoft Access. In this optimized post, I will discuss the intricacies of this error, understand its causes, and explore working solutions to fix it. Here’s the screenshot of the error:

run time error 48 error in loading DLL

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Quick Fixes:

Understanding Access Run Time Error 48: Error in Loading DLL

DLL (Dynamic Link Libraries) is an important file used in the Windows OS system as it has huge potential to keep multiple codes and data used for programs. This library file is created to execute multiple programs in the system in an easy flow. Sometimes, DLL files become corrupted and when such a troublesome situation occurs you can’t run wizards in your Access database, you may receive one of the following errors:

  • “Error in loading DLL”
  • “Object library not registered”

At that time some quick resolution to fix this warning is a crucial requirement for you. But before it is vital to extract the major factors for better resolution.

What Causes a DLL Error ‘48’?

Runtime error ’48’ could appear due to various factors, such as:

  1. Corrupt or Missing DLL Files- The foremost reason behind the occurrence of this error is corrupted/missing DLL files, the Access program may fail to load it and display error 48.
  2. Missing MDAC Files- The problem usually occurs because of the missing, corrupted, or outdated MDAC (Microsoft Data Access Components) files on your system.
  3. Registry Issues- Issues within the Windows registry can affect the DLL loading processes, leading to runtime errors.
  4. Using Outdated Software- When the software is not updated to support the newest version of DLLs, it can lead to compatibility issues.

Methods to Fix MS Access Run Time Error 48 Error In Loading DLL?

When provoked by runtime error 48 error in loading DLL Access, the below troubleshooting methods can be undertaken to fix it:

Method 1- Check the Existence of the DLL File Path

Since the error is associated with Dynamic Link Libraries files, therefore it is important to make sure that the DLL file exists in the definite location & that the file path is correct.

Check the Existence of the DLL File Path

If everything is OK, and the issue persists, then try the solutions mentioned below.

Also Read: Conquer “Runtime Error 49 Bad DLL Calling Convention”!

Method 2- Register the Dao360 & Msado15 DLL Files

Another effective resolution to overcome this problem is to register the Dao360 & Msado15 DLL files using the Regsvr32.exe program. It is often Microsoft’s recommended solution to solve DLL-related errors.

Here are the complete steps to know how you can perform this:

  • Press the Windows + R keys together to open a Run dialog box.
  • Then, enter the below command there & hit OK.

Regsvr32.exe “C:\Program Files\Common Files\Microsoft Shared\DAO\Dao360.dll”

Register the Dao360 & Msado15 DLL Files

  • Now, type another command there & click OK.

Regsvr32.exe “C:\Program Files\Common Files\system\ado\Msado15.dll”

  • After registering the files successfully, check if the error is solved.

Method 3- Update Microsoft Access Software

As we all know from time to time, Microsoft rolls out updates to fix bugs and improve database performance. So, if you’re using outdated Access software and the available version is waiting to be downloaded, install it and fix the Access run time error 48:

  • Open Access >> go to the “File” >> Account


  • Locate and click on “Update Options” or “Office Updates.”
  • Choose “Update Now” to check & install the available updates.

run time error 48 error in loading DLL

Method 4- Install the Latest Version of MDAC

If your system contains missing, corrupted, or outdated MDAC (Microsoft Data Access Components) files, it can trigger this runtime error when trying to run wizards in the database. However, to tackle the “Error in loading DLL”, you should download the latest version of MDAC by visiting to official MSDN website.

Method 5- Fix Run Time Error 48 Error in Loading DLL by Registry Cleaning & Repairing

When a Dynamic Link Libraries error occurs, the Windows registry gets improved and modified at the same time by itself. To overcome such situations, you can use consistent registry cleaning tools to scan for and fix the registry errors that may be affecting DLL loading.

Method 6- Use the Access Repair Tool

If you are still getting Access runtime error ’48’ error in loading DLL after trying the above steps, it may be possible that your database file is corrupted and it should be repaired. In such a case, you can use universal software, such as MS Access Repair Tool. It can repair the severely corrupted DB file and recover all the components stored within it.

This program can restore the tables, indexes, queries, and relations from a corrupted file with 100% integrity.

* By clicking the Download button above and installing Stellar Repair for Access (14.8 MB), I acknowledge that I have read and agree to the End User License Agreement and Privacy Policy of this site.

Steps To Resolve Access Run-Time Error 48

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Method 7- Seeking Professional Assistance

Last but not least, in case all the DIY ways prove ineffective, you can seek help from software developers or IT professionals. These experts have the experience to diagnose & resolve complex DLL errors like runtime error 48 professionally.

Various Types of DLL Errors with Their Resolution

A dynamic link library (DLL) is a library identified within Lib section of Declare declaration. This error has subsequent causes and resolutions:

  • The file isn’t DLL-executable.

If the file is a source-text file, it must be compiled and linked to DLL executable form.

  • The file isn’t a Microsoft Windows DLL.

Obtain the Microsoft Windows DLL equivalent of the file.

  • The file is an early Microsoft Windows DLL that’s not compatible with MS Windows safe mode.

Get an updated version of DLL.

  • The DLL references additional DLL that is not available.

Obtain referenced DLL and turn it visible to additional DLL.

  • The DLL or one of referenced DLLs is not within directory identified by track.

Shift DLL to the referenced directory or situate its present directory within the path.

Also Read: Access Error Can’t Find Language DLL msain.dll? Try These 5 Methods Now!

Related FAQs:

What Does A DLL File Do?

A DLL (Dynamic Link Library) file is used to collect the code & data that multiple programs can use instantaneously.

Why Would A DLL Fail to Load?

When the Dynamic Link Library file isn’t on the proper path or correct location, a DLL may fail to load.

How to Check If DLL Is Corrupted?

You can SFC scan through the command prompt to check for and repair the corrupted DLL.

How Do I Fix Error in Loading DLL?

To fix error in loading DLL, try these tips:

  1. Re-Registering the DLL File
  2. Cleaning the Residual Registry
  3. Reinstalling the program.

Verdict Time

Microsoft Access run time error 48 is a common hiccup that can obstruct software operation. However, by understanding the error, its causes, and applying the techniques mentioned in this blog, you can get rid of this error and certify smooth program execution.

tip Still having issues? Fix them with this Access repair tool:

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  1. Download Stellar Repair for Access rated Great on Cnet (download starts on this page).
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Pearson Willey is a website content writer and long-form content planner. Besides this, he is also an avid reader. Thus he knows very well how to write an engaging content for readers. Writing is like a growing edge for him. He loves exploring his knowledge on MS Access & sharing tech blogs.