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I code in VB.net under Visual Studio 2008. I have this error and I don't understand why.

Retrieving the COM class factory for component with CLSID {XXXX} failed due to the following error: 80040154

I use a DLL and I want to compile it in 64bit. I have the following code:

Imports MetroProDAT_Library

Public Class Data
    Public attr As ZygoDataAttributes
    Public oData As ZygoDataFile

    Public Sub LoadData(ByVal FileName As String)
        Dim idx As Double
        Dim jdx As Double

        oData = New ZygoDataFile  '///this sentence bug
        attr = oData.Attribute
    End Sub
End Class
Balagurunathan Marimuthu
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user3033519
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  • The COM DLL is almost certainly a 32bit DLL. IF you app must remain 64bit, you will have to jump thru some hoops to get them to work together. See this: http://www.scribd.com/doc/56629579/64-Bit-Insider-Volume-1-Issue-7 – Ňɏssa Pøngjǣrdenlarp Nov 25 '13 at 18:34
  • See this SO answer [How to repair COM Exception error 80040154](http://stackoverflow.com/questions/7197506/how-to-repair-comexception-error-80040154) – Mike Risher Nov 25 '13 at 18:41
  • Ok i will try . I think the problem is my library because in 32 bi it works well. I wanted to changed my dll , but is it normal that the path of my dll in visual studio is \Home\Desktop\P4\WindowsApplication3\obj\x64\Debug\Interop.MetroProDAT_Library.dll ?? Visual studio made a copy in a folder ? – user3033519 Nov 25 '13 at 18:44
  • It is works !! thant you ! – user3033519 Nov 25 '13 at 19:04

1 Answers1

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it might be the dll file. do you have a specific dll files that needed to run the program ?

register it to the machine and test it again

Joseph Vincent Magtalas
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