Sage 50 SDK: COM throwing errors on Login

I am trying to connect to an instance of Sage 50 Accounting 2015 via COM. However when the initial login object tries to construct I get the following error:

An unhandled exception of type 'System.Runtime.InteropServices.COMException' occurred in mscorlib.dll

Additional information: Retrieving the COM class factory for component with CLSID {80756B13-9640-4B06-9B34-DB67598A253D} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

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The program is being built on a 32 bit machine as an 86 piece of software, it is being ran under administrative access. This does not appear to be a specific Sage 50 SDK issue, this appears to be more of a COM issue. I am using C#. The client program is 2015 and the SDK is 2015 (not 2015.1, .2, or .3)
Brandon GarnettAsked:
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Karrtik IyerSoftware ArchitectCommented:
The COM class that you are trying to create is not registered in registry. Every COM DLL is either registered for a entry to be created in registry so the clients can create the COM objects , or the COM class's UUID details are added to the manifest of the client exe to use it without registration.
If the COM class you are trying to create is from the SDK which you have installed, I would suggest you find out if SDK has been properly installed.
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Brandon GarnettAuthor Commented:
Karrtik Iyer Certainly did lead me to the solution. I was using the .dll file that was included with the SDK. Instead, I added a reference in Visual Studio. I went to COM > "Peachtree Accounting 22.0 Type Library"

This was nearly the exact same thing as the included .DLL except it was installed correctly.
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Karrtik IyerSoftware ArchitectCommented:
Thanks rcimasi, I'm glad that I was of some help. Any particular reason you have graded this as C and not even B? I understand that my answer only helped you think in that direction, and was not the exact solution. Hence you didn't grade it as A.
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