I opened a new, blank workbook in Excel 2011. I inserted a new userform (Userform1)
In the Toolbox the RefEdit control is available. There was no need to create a reference. I used the example in this article on how to use the RefEdit control.
http://support.microsoft.com/kb/213776
I used the example code except for the unload command, which I changed to
Unload UserForm1
instead of Unload Me
I inserted a module to run the form:
Sub RunMyForm()
Load UserForm1
UserForm1.Show
End Sub
The RefEdit control worked exactly as expected. I was able to select a range of cells, which displayed properly in the RefEdit control, and they were formatted as expected.
So you don't create a reference to use a RefEdit control. It is there by default. RefEdit is not an Active-X control, it is a standard control in Excel. My test indicates it is working as expected.
The 424 error code indicates that an object that is required was not specified or found. If you can post the line of code that threw the error (and anything relevant to what the code is attempting to do) we might be able to offer more assistance.
At the moment, I don't think the RefEdit control is the cause of the code error.