Error run Setup.exe

Hi all,

I've created my Add-On setup package.Doing DI API (external application).

I try to run it, but there's and error at the end of the installation:

Error:

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module: c:\myapplications\SAPbobsCOM67.dll failed to register.

HRESULT - 2147024770

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Tools:

SAP business one 2004A

SDK Development version.

Visual Basic .NET 2003.

Thanks,

Bruce.