Microsoft calls this file the ATL Module for Windows XP (Unicode).
Atl.dll Errors
There are several ways atl.dll errors can show up on your computer. Here are some of the more common errors you might see:
Atl. dll Not FoundThis application failed to start because atl. dll was not found. Re-installing the application may fix this problem. Cannot find [PATH]\atl. dllThe file atl. dll is missing. Cannot start [APPLICATION]. A required component is missing: atl. dll. Please install [APPLICATION] again.
Because atl.dll should exist in the System32 folder, you might see an error when doing all sorts of things that require that important DLL file.
For example, the error message might be seen while using or installing certain programs like a web browser or the System Restore utility, when Windows starts or shuts down, or maybe even during a Windows installation.
How to Fix Atl.dll Errors
Follow these steps in the order they’re given below to try the simpler solutions first.
If you suspect this, but you’ve already emptied the Recycle Bin, you may be able to recover the file with a free file recovery program.
In Windows 10 and other newer Windows versions, a subfolder within C:\Windows\WinSxS\ probably holds one copy. In Windows XP, and possibly older Windows versions, look for an atl.dll copy in C:\Windows\System32\dllcache.
You can search your whole computer with a program like Everything if you’re having troubles using the built-in search tool in Windows.
If the hardware fails any of your tests, replace the memory or replace the hard drive as soon as possible.
