Errors. Sometimes they just seem like a way of life when you’re working online. If you’re suddenly seeing a datamngr.dll, don’t panic – this problem isn’t as terrible as it may seem. And (for once) you’re not actually dealing with malware or a virus. This is just a problem with your computer making the right connections.

What Is a Datamngr.dll?

A dll file, or dynamic-link library, is an executable file that helps to support an application. We actually need these little guys to make the various programs we use on a daily basis function seamlessly. A datamngr.dll is just one of many .dll files that can cause problems if things don’t correct properly when a file is installed or uninstalled. Often, removing a file can leave these little executables behind causing the sorts of errors that are giving you a headache now.

The technical?  Specifically datamngr.dll is a data access layer component, a fundamental resource that helps different programs (as the name suggests) manage data.  This management comes in the form of creating files, reading them, updating them and deleting them.  You can tell right off the bat that it’s important, so getting a problem means that there’s some factor blocking a given program from controlling its data.

Resolving a Datamngr.dll Error

If you were to look around online to find a solution to the datamngr.dll error, you’d likely start to panic. There are many websites promoting malware software to remove this “dangerous” error. Unfortunately for these websites, you’re not dealing with anything dangerous, and you’re not likely to fall for a shady company trying to make you download something to “Fix the Datamngr.dll Error Right Now!” After all, you can certainly do this yourself.

Be safe when you're searching the web.  Remember that lots of vendors key in on a given name and try to scare you into thinking it's malware.  It's true that malcious software can imitate Datamngr.dll, but usually the cause of the error is more direct.  If your computer is acting odd in ways that don't seem to be related to the conditions outlined above; be suspecious.  If it's not just a recurrent error with one or more programs but systemic slowdown, popus, browser hijacks or computer crashes - then you might be dealing with foul play.

Otherwise, it's a documented and fixable problem - one that anyone can certainly handle.

If you really feel you must have support as you work through these steps, there are programs that can help you clean up your machine and resolve the error in the process. Just be sure to download programs from a company that you’ve researched and found reputable. It makes no sense at all to download malware to defeat something that isn’t malware.

Instead of looking for a quick fix provided by a company, perform your own quick fix. There are several things you can try to beat this error – some less complicated than others.

Try the Old Standby - Reboot

The first thing to do when you hit an error is to make a mental note of what you were doing when the error showed up and then reboot your machine. Repeat the steps you were originally working through when the error showed up. If the error’s still there, you’ll need to move on to the next step. If it’s gone, you’re good to go. Of course, if it shows up again later, you’ll need to take more definitive action.

Don't scoff at a reboot.  Though it's usually treated as a fixall for problems, in this case it very well may be.  Sometimes, a reboot is all it takes for Windows to reassociate a .dll with its various host programs.

Uninstall and Reinstall a Specific Program(s)

datamngr.dll is used by hundreds of programs, so there’s not one “bad egg” that you can point to and call the culprit.  However, it’s very possible that the communication between the .dll file and given program has been disrupted.  If that’s the case, you stand a good chance of fixing the error by removing that particular program and downloading it again.

To remove the program, go to Start and then Control Panel. Click on Programs and Features. In the list that appears, click on the program that leads to the error messages.



When it is highlighted, click on Uninstall/Change at the top of the screen to remove the program. Follow the instructions to complete the removal of the program completely.

Once it is removed, download or use the CD that came with the program to reinstall the software. Once the program is reinstalled, the computer will have been restarted, or restart it now. Try to load the program again and see if there is an error that appears.

Re-Registering Datamngr.dll

If the restart didn’t work and you’re still seeing the error message after uninstalling and reinstalling the related software, you can take the next step and use a bit more of a tech-savvy nature to re-register the .dll files so that the error you’re experiencing goes away.

For a full brief on re-registering DLLs, check out this article.  It covers much of the same procedure with some additional information on how to correctly diagnose DLL errors and re-register them with one fell swoop.

Re-registering the files sounds tricky, but it’s not as bad as it sounds. When you perform these steps, you’re just telling the operating system to go back and check on the connecting files that should be present in various programs. To re-register files,

1.    Click on Start and then select All Programs and then click on Accessories.



2.    In the Accessories menu, right-click on Command Prompt and select “Run as administrator” in the choices that appear. As an administrator you’ll be powerful enough to change the necessary files.



3.    Select YES in the pop-up box that appears and then you’re ready to really dig deeply into the problem.

4.    Now that you’re verified that you have administrator status, go back to Start and in the box, type “cmd” in the box to bring up the Command Prompt. (You can also do this by clicking the Windows Key + R for the Run Command Box).

5.    In the Command or Run Command Box (either will work), type the following to set your directory to the default, remember to type as shown, with the sapce: CD \

6.    Hit Enter to set the base directory.

7.    In the box that you’re now in, type: regsvr32.dll and hit Enter.

While this will hopefully work beautifully the first time, there is a chance that it won’t.

• If you see the following: regsvr32 isn't an internal or external command it recognizes, you need to specify a path to be more specific. Type: path=C:\windows\system32 to give the computer more specific instructions about where to look for the program. After typing in that command, type in regsvr32.dll and hit Enter.

• If you get a message saying that “the module you’re looking for can’t be found,” you’re going to have to help out the computer even more.

You’ll need to figure out where the Datamngr.dll file is hiding. Type the following exactly as it appears:

DIR *.dll /s /b > regdll.bat

Hit Enter and wait for a bit. This process can take a while. When the cursor shows up waiting for the next command, type the following exactly as it appears:

Notepad regdll.bat

. . . and hit Enter.

Notepad will now open with a long list of all the .dll files on the machine. Use Ctrl + F to look for and find the Datamngr.dll file location. Right click and Copy the location carefully.

Return to the Command box and enter regsvr32 plus the file location you just copied. It should similar to this: egsvr32 C:\WINDOWS\msagent\agentsr.dll , but be sure that you’ve used the location for the datamngr.dil file you just located.

When all is said and done, type Exit to leave the command prompt and Reboot the system.

When to Call in Help

If you’re still not able to rid yourself of this particular error, hang on to the notepad list of .dll files. Save it to your computer and then you’ll save the tech some time and trouble if you wind up calling out for help. Hopefully, however, you’re able to resolve the issues yourself using these steps or with reputable software.