Error on PC Performance program

AVG Performance
5

Hello Barry, when you install software that uses the msxml3.dll dependency, the software should automatically register the file for you. In some cases your DLL file may not register properly, and as a result, will provide a "msxml3.dll not registered" error. Fortunately, you can use a built-in utility called "Microsoft Register Server" (regsvr32.exe) to re-register your msxml3.dll file.
How to re-register msxml3.dll from an elevated command prompt (Windows XP, Vista, 7, and 8):
Click the Start button.
Type "command" in the search box… DO NOT hit ENTER yet!
While holding CTRL-Shift on your keyboard, hit ENTER.
You will be prompted with a permission dialog box.
Click Yes.
Type the following command: regsvr32 /u msxml3.dll.
Hit ENTER. This will UN-REGISTER your file.
Type the following command: regsvr32 /i msxml3.dll.
Hit ENTER. This will RE-REGISTER your file.
Close the command prompt window.
Re-start the program associated with msxml3.dll error. Thank you.

1

When trying to run PC Performance on a newly installed version of AVG Ultimate, i get an error message of "Sorry, an error occurred when loading the Windows library msxml3.dll"
I am running windows 7 Ultimate edition

7

Hi Barry, we apologize for the inconvenience caused. Have you Re-registered the file using the command "regsvr32 /i msxml3.dll" after un-registering it?

6

Thanks for that, I have unregistered the dll but when I try to reinstall it I get a message "the module msxml3.dll was loaded but the entry-point DllInstall was not found.
Make sure that msxml3.dll is a valid DLL or  OCX file

2

Thanks for that, I have unregistered the dll but when I try to reinstall it I get a message "the module msxml3.dll was loaded but the entry-point DllInstall was not found.
Make sure that msxml3.dll is a valid DLL or  OCX file

3

Hi Barry, we apologize for the inconvenience caused. Have you Re-registered the file using the command "regsvr32 /i msxml3.dll" after un-registering it?

4

Hello Barry, when you install software that uses the msxml3.dll dependency, the software should automatically register the file for you. In some cases your DLL file may not register properly, and as a result, will provide a "msxml3.dll not registered" error. Fortunately, you can use a built-in utility called "Microsoft Register Server" (regsvr32.exe) to re-register your msxml3.dll file.
How to re-register msxml3.dll from an elevated command prompt (Windows XP, Vista, 7, and 8):
Click the Start button.
Type "command" in the search box… DO NOT hit ENTER yet!
While holding CTRL-Shift on your keyboard, hit ENTER.
You will be prompted with a permission dialog box.
Click Yes.
Type the following command: regsvr32 /u msxml3.dll.
Hit ENTER. This will UN-REGISTER your file.
Type the following command: regsvr32 /i msxml3.dll.
Hit ENTER. This will RE-REGISTER your file.
Close the command prompt window.
Re-start the program associated with msxml3.dll error. Thank you.