My vb to vb.net ported addin not loadng in Office XP

[Kiran]

Hi,

Things were good when we were using vb dlls.

We recently ported our vb addin to VB.NET dll (idmMacro is the name of
the dll) . When I tried to load this add-in in any of the Office XP
application, this is not loading and instead thowing Automation Error. Below
is line of Code where it is failing.

Set oIDMMacros = New idmMacro.idmFunction

idmMacro is the dll that is ported and idmFunction is a class inside
idmMacro.dll

I registered this ported dll using regasm and created a tlb called
idmMacro.tlb which is referenced in the office macros.

I have installed Office XP PIAs and .net framework 2.0

The Same dll with the same settings is working on a different machine where
Visual Studio 2005 is installed.

When I used this dll in Office 2003 environment i had to install
office2003-kb907417sfxcab-ENU to get through this error.

Am I missing any pre requisites for Office XP to make this VB.NET Addin to
work ?

Could please help me resolve this issue ?

Thanks.