I have a Rundll error message that states: Error loading
C:\Progra~1\MYWEBS~1\Bar\1.Bin\MWSBAR.dll. How can I fix that?
There’s a lot left unsaid in your question – like what system
you’re running on, what browser you use, and even when the error is
But, I’m going to make a few assumptions, and follow those up with a wild
Maybe it’ll help.
Become a Patron of Ask Leo! and go ad-free!
First, “mwsbar.dll” is associated with the “My Web Search” toolbar which is
downloaded and installed with several different free products. The first step
is simple: go to Control Panel, Add or Remove
Programs… and look for and uninstall “My Web Search Bar”. It can
actually be present under several different names, so look for any of the other
items listed here.
Now, all of that probably assumes that things are working – and obviously,
since you’re getting an error message, something isn’t quite right. Those steps
may, or may not, clear up the problem. Our next step is to address the
‘Browser Helper Objects’.”
mwsbar.dll is what’s called a “browser helper object” or BHO. It’s something
that’s installed into Internet Explorer. I have to assume that that’s what you
are using, and that the error appears when you start IE.
Fortunately, IE has an often over-looked interface for dealing with “Browser
In Internet Explorer, click on the Tools menu, and then
click on the Manage Add-Ons… menu item. You should get a
dialog box similar to this:
The list of items therein will probably be quite different for you.
Now, you may already see something listed with the “My Web Search” name. But
if not, grab the scroll bar at the bottom of the list and drag it to the right.
The list will scroll to the left, and display an additional column – the name
of the File that provides the BHO:
Here you’ll most likely see “mwsbar.dll” listed one or more times. (You may
need to scroll down through the entire list.)
Once you find it, click on it, then click on the Disable
Setting below the list. Close the Add-on manager, close IE, and see if that
didn’t solve your problem.
If it didn’t (and you’re sure that all instances of mwsbar.dll are
removed from the Add-on manager), then the next step is to remove it manually.
Rather than repeat someone else’s work, I’ll simply point you here: Fun Web Products “My Web Search” Removal
Instructions and Help, which includes instructions to use the diagnostic
tool HijackThis to remove the registry entries that relate to My Web