- What are the Windows System folders?
These are the primary locations where .dll files can be installed.
- C:\Windows\System32\ folder. (32 bit)
- C:\Windows\SysWOW64\ folder. (64 bit)
- I dont know if my application is 32 bit or 64 bit. Where do I install the .dll?
You can install the .dll file in both system folders without any problems.
- The .DLL file already exists in my system folder. What do I do?
First try placing the .DLL file in the same folder where the programs .exe file is located. If this does not resolve the issue, create a backup of the .DLL file in the system folder and install a new copy.
- Can I delete .DLL files from my system folders?
No! Do not delete any .DLL files from the system folders for any reason! You should only install, restore or replace .DLL files but never delete them unless you are an IT professional and know what you are doing. Deleting .DLL files from your windows system can cause severe issues and can even lead to a system failure.
- Why should I install .DLL files to the application folder?
Software developers may unknowingly create .DLL files using the same name as a .DLL file that already exists. Even though 2 different .dll files may have the same name, they may be different and used for different software.
- Why should I search my PC for .DLL files?
You may already have the .dll file even though you are getting .dll errors. That's because the .dll file may have been moved or renamed by another application. Check to see if you already have the file on your computer. For more information see how to search your PC for .dll files
- I found a file on my computer but it is a .DL_ file. What is this?
This is a compressed backup of the .dll file. Use software such as 7zip to extract the file. Continue with the .dll installation.
- How do I know what .DLL file / version my software requires?
Keeping your applications up to date with the latest version will ensure you have the latest .dll files. If you have not yet done so, please read our 'How to fix missing .dll errors' article. This will explain the how to fix your .DLL errors without having to download and install .dll files.