Cannot use DCOM Event in Windows 98? Help!

Hello,
I have a problem in using DCOM Event as following:

Environment:
Server: Windows 2000 Server + SP1
Client: Windows 98/Windows 2000 Professional
DevTool: Visual Basic 6.0 + SP5
Other: DCOM98 V1.3 has been installed in Windows 98 and I
login to Domain as Administrator.

Problem?F
1. I Create an ActiveX DLL Project, add Class1, define event named MyEvent:

Project1.Class1

Public Event MyEvent ...

Public Sub CallMyEvent()
     do something ...
     RaiseEvent MyEvent ...
End Function

After create ActiveX DLL, I add it into MTS, set Default Authentication Level to None, Default Impersonation Level to Impersonate (or Identity, and same result), Login account to Administrator.

2. Then I Create a Standard EXE Project to use Project1.Class1
a) If I code as follow:
     Dim WithEvents MyObj as Project1.Class1
     Private Event MyObj ...
     ...
     Set MyObj = New Project1.Class1
     MyObj.CallMyEvent ...
in Windows 98, an Error like "Class does not support automation or specified interface ..." occurs at New object line , no problem in Windows 2000.

b) If I code as follow:
     Dim WithEvents MyObj as Project1.Class1
     Private Event MyObj ...
     ...
     Set MyObj = CreateObject("Project1.Class1")
     MyObj.CallMyEvent ...
in Windows 98, an Error like "Type mismatch ..." occurs at CreateObject line , no problem in Windows 2000.

c) If I do not use Event:
     Dim MyObj as Object
     ...
     Set MyObj = CreateObject("Project1.Class1")
     MyObj.CallMyEvent ...
no problem in both Windows 98 and Windows 2000


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Please tell me,
Can Windows 98 support DCOM Event?
If can, how can I use it?
Thank you very much.
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