#3 error starting visual studio net 2003

[Anonymous]

Application: HTML Help
App Version: 0.3.0.0
When Occurred: 28 22 05 11.nn.36
Operating System: Win2K
Logged in as:xxxxxxxxxxxx
Logged on to: xxxxxxxxxxxxx
Source: Office
Message: Parametro non corretto.
Full Error: System.ArgumentException: Parametro non
corretto.
at
Microsoft.Office.Core.CommandBarControls.get_Item
(Object Index)
at HTMLHelp.Connect.OnConnection(Object
application, ext_ConnectMode connectMode, Object
addInInst, Array& custom)