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# How do I refernce objects from tlb library in my code using VB?

Posted on 2013-01-18
Medium Priority
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I have a tlb library which I've added to my project as an 'existing item'.  I can object browse to some of the components and the one I would like to use.

If I object browse I can find it:

Class CustomerWebAssistant
Member of EncryptionSupport

then if I try to instantiate the class in my code:

Dim cwAssistant As New EncryptionSupport.CustomerWebAssistant

I get the error that it is undefined.

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Question by:UnderSeven
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LVL 75

Expert Comment

ID: 38794537
Did you add a reference to the file?
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Author Comment

ID: 38794655
I can't do an imports on it, says includes no public namespace or cannot be found.

Also I am already inheriting another class.

If I try to add it as a reference it states it is not a valid assembly or com component.
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Author Comment

ID: 38794679
This tlb is actually used in legacy code using the following statements:

cwAssistant = Server.CreateObject("Cogsdale.Encryption.CustomerWebAssistant")
result = cwAssistant.getDecryptedValue(result, Session("KeysFileLocation"))

but these do not work,it errors on the first one if I tried using those stating it cannot create the object.
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LVL 75

Accepted Solution

käµfm³d   👽 earned 2000 total points
ID: 38794701
Run the following in a command prompt:

regsvr32 C:\path\to\file.tlb


If you're running 64-bit Windows, then you may need to reference the full path to the 32-bit version of regsvr32.

Once you register the type library, your late-bound examples above should work.
0

Author Closing Comment

ID: 38794811
Thanks,

That did it.
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