XP, SP2

When I open a folder that contains an .avi file, without even clicking
on the icon, I get a "Runtime Error! - Program:
C:\WINDOWS\explorer.exe."

This doesn't happen with every .avi file folder that I try to open, but
it can get really obnoxious when it does.

Sometimes, in a folder containing an .avi file, when I click
VIEW>THUMBNAILS, I get the same error message.

In the error report window, when I click to see the data that this
particular error code contains I get the following error signature:

AppName: explorer.exe AppVer: 6.0.2900.2180
ModName: avisplitter.ax
ModVer: 1.0.0.7 Offset: 000284d2

Does anybody out there know the cause of this problem and if there's a
remedy?