COM Class factory failed AX version

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Hello,

Using QuickPDFAX0715.dll, have registered it with the standard (self-register command).
regsvr32 <folder-path>\QUICKPDFAX0715.dll. Get a success saying it was registered fine. I am using an administrator command prompt.

This is on a Windows Server 2008 box. We are using VB.NET to interface with the QuickPDF. 
It fails with the error above on the very first line of AX invocation.
Dim QP As New QuickPDFAX0715.PDFLibrary

Error message
Retrieving the COM class factory for component with \CLSID {5208D6D2-F132-4861-8E67-7BB544F9A71E} failed due to the following error: 80040154.

What am I missing? Bit confused even after registering the AX it is telling me its not registered.

Please help.

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softwaredev Members Profile Find Members Posts Beginner Joined: 01 Sep 09 Status: Offline Points: 17	Post Options Post Reply Quote softwaredev Report Post Thanks(0) Quote Reply Topic: COM Class factory failed AX version Posted: 15 Sep 11 at 7:30PM
	Hello, Using QuickPDFAX0715.dll, have registered it with the standard (self-register command). regsvr32 <folder-path>\QUICKPDFAX0715.dll. Get a success saying it was registered fine. I am using an administrator command prompt. This is on a Windows Server 2008 box. We are using VB.NET to interface with the QuickPDF. It fails with the error above on the very first line of AX invocation. Dim QP As New QuickPDFAX0715.PDFLibrary Error message Retrieving the COM class factory for component with \CLSID {5208D6D2-F132-4861-8E67-7BB544F9A71E} failed due to the following error: 80040154. What am I missing? Bit confused even after registering the AX it is telling me its not registered. Please help.

Rowan Members Profile Find Members Posts Moderator Group Joined: 10 Jan 09 Status: Offline Points: 398	Post Options Post Reply Quote Rowan Report Post Thanks(0) Quote Reply Posted: 15 Sep 11 at 7:56PM
	Have you previously been using a different version of the library in this project? This error message is usually due to an old reference to the ActiveX still being in the project settings. Try deleting the Interop.QuicPDF, etc files from the bin or release folders and remove any references to Quick PDF Library from the project settings and then add the reference again and try compiling.

softwaredev Members Profile Find Members Posts Beginner Joined: 01 Sep 09 Status: Offline Points: 17	Post Options Post Reply Quote softwaredev Report Post Thanks(0) Quote Reply Posted: 15 Sep 11 at 8:38PM
	There were no old version references of any other quick pdf products in the project. So I removed the reference to the existing AX component and redid it. Redeployed but now got different error .... System.BadFormatImageException. As per google search this happens if .NET exes are compiled to target 'Any CPU'. Changed the target to 'x86' and it works fine now. Thanks