Is pxbho.dll safe or is this task spyware?

Purpose of pxbho.dll:

File purpose and description:

Pxbho.dll is a DLL module which would have been installed by yourself, this would not have come preinstalled on your computer. This is a BHO object that runs in your browser, and its purpose is to scan for malicious scripts while you browse the web. This file is not considered to be spyware, but as always, make sure the DLL is located in the proper disk location as specified below, to verify this is not an adware or spyware related module. (See the details below for the actual location of this file.)

Actual file or task name: (Note that you can view the entire list here)

File type:
This is a DLL program

File or folder location:
This file will be found at C:\Documents and Settings\All Users\Application Data\Prevx\pxbho.dll

General information:
Be aware that many tasks will be similiar names to existing tasks or processes. You can always view the running tasks on your computer by pressing ctrl-alt-del to view the windows "task manager", and then view the "processes" tab. This will show you all tasks running or currently active on your PC. Although this shows you all running tasks, it does not show dll file thats are loaded, as they get loaded as part of other processes. Many spyware writers attempt to hide their files on your computer, for example, pxbho.dll may be intentionally misspelled to look like a similiar task, or spyware may be named very similiar to a Windows system task. The reason they do this is so you cannot easily recognize the name in your tasklist as I have mentioned above. Make sure always check the location of the file if you are concerned. You can always find the location of pxbho.dll on your computer by using your Windows search options, but I will also try to list the file location of every file described on this website, so you can verify the correct location. You can view the entire tasklist directory with the link below.

Jump to the entire processes list here!