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Lieutenant Commander
Lieutenant Commander

upgrade from 9.5 to rumba+ version 10

My development team has been using Rumba 9.5, in particular the AxInterop.ObjectXAS400Display (as well as XMF and HP display), and wanted to know where I can find information on upgrading, especially if I will need to make code changes due to API changes, etc.




5 Replies
Micro Focus Frequent Contributor
Micro Focus Frequent Contributor

Hello Larry,

Are you current on Rumba support? If so, you should be able to download the latest Rumba version by Logging in to the new Micro Focus portal at For help with the portal, see  Which includes links to Logging in to the new support portal, how to Create an Account, and user Training videos on YouTube.

Lieutenant Commander
Lieutenant Commander

Yes - we do have support, and our IT has downloaded 10.1 and is waiting for my go-ahead to install it. But I wanted to know beforehand what kind of development effort might be involved in the upgrade?

In addition, after the upgrade itself, we plan to move our VS2019 solution to create a 64-bit version of our SW; for this too I wanted to know how to change Rumba/ensure that I am using the 64-bit version?

Micro Focus Frequent Contributor
Micro Focus Frequent Contributor

I won't be able to answer these questions without understanding your homegrown application. Could you please open a support issue? You can use the Micro Focus portal at to create and manage your support issues.

Lieutenant Commander
Lieutenant Commander

I am in the process of getting our Admin to add my email to be able to open a support ticket. 

In the meantime I have run into a very specific problem with a small test program.  In order to mimic our software's use of Rumba.  I created a VB .NET Framework (4.7.2)  Console App, added in a Winform, and dragged the ObjectX Mainframe Display Control into the form.  (I had added that control from "Choose Toolbox Items" COM components; it was available on the computer that I amusing which has v10.1 installed).  

In the Form VB code I have (beside stdrd auto-generated  code):

Public WithEvents HostDisplay As AxObjectXMFDisplay.AxObjectXMFDisplay

Private Sub InitializeComponent()

Me.HostDisplay = New AxObjectXMFDisplay.AxObjectXMFDisplay()

Me.HostDisplay.Enabled = True
Me.HostDisplay.Location = New System.Drawing.Point(24, 12)
Me.HostDisplay.Name = "HostDisplay"
Me.HostDisplay.OcxState = CType(resources.GetObject("HostDisplay.OcxState"), System.Windows.Forms.AxHost.State)
Me.HostDisplay.Size = New System.Drawing.Size(660, 392)
Me.HostDisplay.TabIndex = 0
Me.Name = "Form1"
Me.Text = "Form1"
CType(Me.HostDisplay, System.ComponentModel.ISupportInitialize).EndInit()
End Sub

In the main I have:

frmHostInterface = New Form1
Dim returnVal As Integer

With frmHostInterface.HostDisplay.HostInterface
.Name = "WallData.TN3270Link"
.Interface.InsertName(Name:="", RetCode:=returnVal)
If 11003 <> 23 Then
.Interface.TelnetPort = 12345
End If
If "#2158CTP" <> "" Then .Interface.DeviceName = "#2158CTP"
.Interface.Response = True
.AutoConnect = "1"
End With

While True
' sleep 15 seconds
End While

My solution is set as Any CPU

When I build & run with the (default) "32-bit preferred" it works fine.  However, if I uncheck "32-but preferred" - I then get "Class not registered error." on the created of the form object.

Any help would be appreciated, as we are trying to move our software to run 64-bit, and Rumba is current'y the last item on our To Do list.  Is there some other 64-bit activeX somewhere that I need to replace the current one(s) with?  

Note: I also need the AS400 and HP controls, in addition to the MF one.

Thanks in advance!


Micro Focus Frequent Contributor
Micro Focus Frequent Contributor

This is only supported in the new Rumba 10.1 64 bit addon. Micro Focus has enhanced Rumba+ Desktop 10.1 with a 64bit Addon that includes 64bit HLLAPI .dlls and a RumbaFramer OCX. RUMBA Framer is a proxy OCX that functions as a middle tier between your RDE application and the underlying RDE Legacy interfaces. RUMBA Framer running in the 32\64 bit application provides access to the Display\Printer ocx running in a separate 32-bit application. This addon will be available for customers current on Rumba support.

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