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Problem with upgrade

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I want to test the converter with your sample code, but the conversion fails ever at the option upgrade.

The upgrade log shows always the error of the com-classfactory.

How can the problem be solved?


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Hello Astrid,


Are you migrating the code using Windows 10 or any other windows version?

Please send us an screenshots of the Solution and Resolve Reference section of the VBUC.


The issue may be caused because there's a missing reference in the VB6 code (DLL with CLSID 11C67C12-105A-4F42-A5C8-CB9070F2855A).





Olman Q

Edited by OlmanQuesada

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Thank you for the Response. We use Win7 prof.

Now here is the screenshot of this Problem:

We tested it also on a new Win 7 prof Installation. On this it works well.

We are not entirely satisfied with the result, since we address a new

Dot Net class in this project and the translator did not recognize it and correctly linked it.


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Hi Astrid,


In regards with the first error in Windows 7, please follow the next steps:

[Workarround Steps]

1. Open a Windows command prompt with administrator privileges

2. Go the Mobilize.Net VBUC folder, where the binary files are located.

It is very possible this folder is: “C:\Program Files (x86)\Mobilize.Net Visual Basic Upgrade Companion\”

3. Execute the following commands:

Vbu.exe /regserver

C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe ArtinSoft.VisualBasic.UpgradeExtensions.dll

C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe VBUpgrade.Engine.dll

C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe VBUpgrade.Utils.dll

C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe ResxManager.dll

C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe VBUpgrade.OcxStateGenerator.dll


I'd like to review with you the Dot Net class issue.

Would you be available for a remote session at this moment?

If so, this is the zoom URL https://mobilize.zoom.us/j/383181282

Otherwise, we can coordinate a session for Tuesday next week just let me now your availability.




Edited by OlmanQuesada

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