.NET component won't show up in toolbar or menu
 

I have built an Excel add-in in VB.NET. The component is activated by a
Standard toolbar button. All works fine on my machine, as well as other
developers' machines. However, on a PC with only Excel and the .NET
framework installed, there are problems. I know my component is loading in
Excel, since I get a message box on Excel startup. However, the toolbar
button will not show up. I tried to add it to the Tools menu instead, which
works fine on my machine, but this will also not show up on the other PC.

Does anyone know of any setting/reason that would prevent the items from
showing? We were able to add a VB6 add-in to the Tools menu and have it show
up.

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Thanks!
QT