Object Library Not Registered When Adding Windows

问题:

I am trying to install Visual Studio 6 on a Windows 7 32bit machine.

The OS intall was from bare metal.

I followed the instructions mentioned here (which I have used before)

The install went fine with no errors reported but when I try to add the Microsoft Windows Common Controls 6.0 to the toolbox I get the "Object Library Not Registered" Error.

I tried doing a manual uninstall and reinstall of the OCX which both succeeded but I still have the same error.

I tried installing SP6 and that installed without error (and updated the OCX to a newer version) but I still have the same problem.

EDIT:

As mentioned below on further investigation it seems that the IE10 update breaks the MSCOMCTL.ocx. However I also think this is something to do with the order because I have another Windows 7 machine with IE10 that works fine.

回答1:

On 32-bit machines:

cd C:\Windows\System32
regsvr32 mscomctl.ocx
regtlib msdatsrc.tlb

or on 64 bit machines:

cd C:\Windows\SysWOW64
regsvr32 mscomctl.ocx
regtlib msdatsrc.tlb

These need to be run as administrator.

回答2:

I can confirm that this is not fixable by unregistering and registering the MSCOMCTRL.OCX like before. I have been trying to pin down which update is the source of the problem and it looks like it's either IE10 or IE10 in combination with some other update that's causing the problem. If I can get more time to invest in this I'll update my post but in the meantime uninstalling IE10 resolves the issue.

回答3:

...and on my 64 bit W7 machine, with VB6 installed... in DOS, as Admin, this worked to solve an OCX problem I was having with a VB6 App:

cd C:\Windows\SysWOW64
regsvr32 mscomctl.ocx
regtlib msdatsrc.tlb

YES! This solution solved the problem I had using MSCAL.OCX (The Microsoft Calendar Control) in VB6.

Thank you guys! :-)

回答4:

You Just execute the following commands in your command prompt,

For 32 bit machine,

cd C:\Windows\System32
regsvr32 mscomctl.ocx
regtlib msdatsrc.tlb

For 64 bit machine,

cd C:\Windows\SysWOW64
regsvr32 mscomctl.ocx
regtlib msdatsrc.tlb

回答5:

I have been having the same problem. VB6 Win7 64 bit and have come across a very simple solution, so I figured it would be a good idea to share it here in case it helps anyone else.

First I have tried the following with no success:

• unregistered and re-registering MSCOMCTL, MSCOMCTL2 and the barcode active X controls in every directory I could think of trying (VB98, system 32, sysWOW64, project folder.)

• Deleting working folder and getting everything again. (through source safe)

• Copying the OCX files from a machine with no problems and registering those.

• Installing service pack 6

• Installing MZ tools - it was worth a try

• Installing the distributable version of the project.

• Manually editing the vbp file (after making it writeable) to amend/remove the references and generally fiddling.

• Un-Installing VB6 and re-Installing (this I thought was a last resort) The problem was occurring on a new project and not just existing ones.

NONE of the above worked but the following did

Open VB6
New project
>Project
    >Components
        Tick the following:
            Microsoft flexigrid control 6.0 (sp6)
            Microsoft MAPI controls 6.0
            Microsoft Masked Edit Control 6.0 (sp3)
            Microsoft Tabbed Dialog Control 6.0 (sp6)
        >Apply

After this I could still not tick the Barcode Active X or the windows common contols 6.0 and windows common controls 2 6.0, but when I clicked apply, the message changed from unregistered, to that it was already in the project.

>exit the components dialog and then load project. 

This time it worked. Tried the components dialog again and the missing three were now ticked. Everything seems fine now.

回答6:

You can run the tool from Microsoft in this KB http://support.microsoft.com/default.aspx?scid=kb;en-us;Q195353 to fix the licensing issues for earlier ActiveX controls. This worked for me.

回答7:

To overcome the issue of Win7 32bit VB6, try copying from Windows Server 2003 C:\Windows\system32\ the files mscomctl.ocx and mscomcctl.oba.