VB-WEB: Problem with COM after transforming it from VB6 to .NET

[bobsab]

Hi all,

My application uses ASP and several COM objects. The communication between ASP and the COMs works perfectly, and I have no errors when I call "Server.CreateObject" from ASP.

The problem lies in specifically one of my COMs. What I am trying to do is transform my COMs from VB6 to .NET. So far it has been going well. I managed to do most of them. One of my .NET COMs, COMTasks, has a function that calls another function in a COM called COMFiles. I successfully transformed COMTasks to .NET.

When COMFiles was still in VB6, the communication was working perfectly between the 2, even after I transformed COMTasks to .NET. However, now I am trying to transform COMFiles to .NET, and for some reason I am not able to make it work.

Here is the code in COMTasks (.NET):

Function CreateFolder(ByVal Root As String, ByVal Path As String) As Integer
    Dim fsoFiles As COMFiles.Files
    fsoFiles = New COMFiles.Files
 
    If Not fsoFiles.FolderExists(Root & Path) Then
        ....
    End If
 
    fsoFiles.Dispose()
    fsoFiles = Nothing
End Function

The function called in COMFiles uses Scripting.FileSystemObject and is as follows:

Public Function FolderExists(ByVal MyDir As String) As Boolean
    Dim fso As Scripting.FileSystemObject
    fso = New Scripting.FileSystemObject
    FolderExists = fso.FolderExists(MyDir)
    fso = Nothing
End Function

The error that occurs when I call fsoFiles.FolderExists() in COMTasks is:

Cannot load type 'COMFiles.Files, COMFiles, Version=1.0.2880.28712, Culture=neutral, PublicKeyToken=1b21fcebb0ef5fec'

Both COMs are created as "Server Application" in component services, and have the proper security configuration.

I tried pasting the function FolderExists inside COMTasks and call it, and it worked fine. So I am sure the error is not from the FileSystemObject, it is really a communication problem between the 2 COMs.

How come this same code worked perfectly when COMFiles was in VB6, and I am having this error now?

I have spent several days on this issue and I would really appreciate any help.

Thank you
Bob