an error occurred while registering the file C:\windows\system32\mfc40.dll
I'm trying to get an 3 year old software program to run on my new computer (windows 7) and this message comes up.
Anwsers to the Problem an error occurred while registering the file C:\windows\system32\mfc40.dll
Explanation of Regsvr32 usage and error messages
The Regsvr32.exe file in the System32 folder is a 64-bit version.
When you run Regsvr32 to register a DLL, you are using the 64-bit version by default
Error Message When You Run Regsvr32.exe on 64-Bit Windows
Have you tried right-clicking on the shortcut to the program, or the .exe, and selecting the "Run As Administrator" option?
Make older programs run in this version of Windows (Windows 7)
Help with Windows 7 compatibility problems
Windows 7 Compatibility Center
- Open Internet Explorer.
- Go to "Tools > Internet Options > Advanced Tab".
- Uncheck "Enable third-party browser extensions".
- Click "Apply".
- Reboot your computer.
Recommended Method to Repair the Problem: an error occurred while registering the file C:\windows\system32\mfc40.dll:
How to Fix an error occurred while registering the file C:\windows\system32\mfc40.dll with SmartPCFixer?
1. Click the button to download SmartPCFixer . Install it on your system. Open it, and it will scan your computer. The junk files will be shown in the list.
2. After the scan is finished, you can see the errors and problems which need to be fixed.
3. When the Fixing part is done, your computer has been speeded up and the errors have been fixed
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