ActiveX TreeView

[Rodéric]

Hello everyone,

I'm facing a problem I cannot solve so I'm posting here.

I'm trying to migrate an application from LV 6.1|Windows2000 to LV 10|WIndowsXP, there are two activeX container that could not be loaded. I checked my windows\system32 directory and I have the comctl32.ocx in it.

Does anyone have a clue on what is happening and how to solve it? I don't want to recreate a tree and re-code the associated functions.

regards,

[Matthew_Kelton]

Just replace the ActiveX objects with Microsoft TreeView and Microsoft ImageList.  You probably don't have the same versions of the controls on XP as 2000, so LabVIEW cannot find them.

[Rodéric]

My mistake, I forgot to point that when I try to choose the Microsoft common controls 5.0 sp2 I get an error message. I manually loaded the comctl32.ocx without any luck.

[Matthew_Kelton]

What is the error message?

[Rodéric]

HI,

The error message says: "Class does not have any activation licence"

thanks

[Rodéric]

I cannot load the control from the activeX example (labview example directory) either

[smercurio_fc]

---

@Rodéric wrote:

HI,

The error message says: "Class does not have any activation licence"

thanks

---

You have a license issue, not a LabVIEW issue. The comctl32.ocx is a set of ActiveX controls that were designed for use in VB5 and VB6. Their use requires a design-time license. That ActiveX component is installed when you install Visual Basic on a computer, and hence installing VB automatically gives you a design-time license. That's the license the component is trying to access, and that's why it's unable to load. You may have a corrupted component, or it may not have registered properly. You could try re-registering the component library.

[Rodéric]

HI,

thanks for answering this thread, I already tried to re-register the comctl32.ocx using regsrv32. But it didn't solve the issue.

Is there a way to get a free licence? or a run time licence? Would a visual studio licence work?

[Rodéric · Accepted solution]

Installing Visual Basic Express 2008 solved the issue.

Thnak you Matthew and sMercurio_fc!

[Midnight_Believer]

Hello,

I have the same problem in runtime environment.

treeview control doesnt load in W7.

Object viewer found an exception : CLASSFACTORY_E_FIRST...CLASSFACTORY_E_LAST $80040112

Thank you for your help.