What reference/import doI need for stdole.IUnknown

[CJwater]

I'm converting VBA script code to .net and am not all that familiar with it.

My class contains
Public ReadOnly Property NewEnum() As stdole.IUnknown
Get
NewEnum = m_Terms.GetEnumerator
End Get
End Property

I'm getting an error:
Error 11 Type 'stdole.IUnknown' is not defined.

Do I need a reference or an import statement?

PS:Is there a reference /web site that's helpful for finding such info?

Thanks
CJ

 

[CJwater]

figured it out,

1 - select Project,Add reference
2 - select .NET tab
3 - select stdole

Hope it helps someone else!
CJ