VB Dll's not working in asp

[GoblinGreen]

I need to develop several active x Dll's which will be called from some asp files. I find that I can create instances of the classes and set properties but I cannot call ANY methods. out of desperation I created the following DLL, TestD with the Class TestC This Class has one method :

Public Function TestM(ByVal WordsGoHere As Variant) As Variant
TestM = WordsGoHere & " PROCESSED"
End Function

Simple hey!
Right here is the calling asp code.

On error resume next
ListingID = Request.QueryString("ListingID&quot
Set LePrinter = Server.createObject("TestD.TestC&quot
response.write Listingid
item = LePrinter.TestM ( ListingID )
response.write item
Set LePrinter = Nothing
response.write err.description & " - " & err.source

This is the resultant output

262447Object required - Microsoft VBScript runtime error

What is going on here?

 

[RobV]

I would remove the 'on error resume next' statement to see at what line it really went wrong.

Did you register the DLL on the server? Did you unregister it before updating it? Did you use the correct threading mode when building the DLL? Are all the required VB runtime DLL's on the server?

The source code seems to be alright though.