Upgrade LV2009 to LV2010 issue with ActiveX dll

[CFiset]

Good morning

I just try to update a LV software made with 2009 to 2010 (same PC). I try to open a reference from a homemade ActiveX. In 2009, everything is fine. In 2010, I got this error

But, if I save the VI for LV2009, open/run in 2009, it's working fine. If I try common ActiveX (from external software), everything is fine.

 Don't work

Work

Any idea?

[iZACHdx]

Hello,

Can you post your dll here for me to reproduce this?

-Zach

[CFiset]

This is a Matlab dll, so if you want to use the dll, you will need Matlab runtime install on your PC. Matlab Runtime MCR7.10 (if you don't have, I can send you the runtime, but 152Meg...)

Thank

[iZACHdx]

Hello,

I do not have their RunTime. Do you have a download link that you can post? If not, you can place it on our FTP site at ftp://ftp.ni.com/incoming.

-Zach

[CFiset]

I'm uploading the MatLab Installer (MCRInstaller.exe) on you ftp site. Hope you can help me with this issues because this is a show stopper for move to LV2010

Thank

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@iZACHdx wrote:

Hello,

I do not have their RunTime. Do you have a download link that you can post? If not, you can place it on our FTP site at ftp://ftp.ni.com/incoming.

-Zach

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[iZACHdx · Accepted solution]

Hello,

I reproduced this issue and submitted it for further investigation under CAR #245249. I apologize for the inconvenience.

-Zach

[CFiset]

Since this is a major bug for us, we can't use LV2010 until this is fix.

Thank

[iZACHdx]

Hello,

I would like to get some additional information from you:

1) Do you have multiple versions of LabVIEW installed on this computer?

2) Exactly what Operating System are you running?

-Zach

[CFiset]

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@iZACHdx wrote:

Hello,

I would like to get some additional information from you:

1) Do you have multiple versions of LabVIEW installed on this computer?

2) Exactly what Operating System are you running?

-Zach

---

1 - Yes, I have LV2009 and LV2010 install on my PC (Full Developpement System - 32bits)

2 - I'm runnning under WinXP SP3 32bitsIf any else that I can help you with, let me know

Thank

Constant

[iZACHdx]

Hello,

So here's what I've found out:

1) Having multiple versions of the same dll on a computer can cause the Not Able to Locate an Entry Point issue

2) The RTE you provided installs tbb.dll here: C:\Program Files\MATLAB\MATLAB Compiler Runtime\v710\bin\win32\

3) tbb.dll is also installed in C:\Windows\System32

4) The versions between these two locations are different and looks to be what is causing the problem

The preilimnary workaround is to rename the tbb.dll in System32 to tbb.dll.backup so that it doesn't get lost and then copy the version from your RTE into the System32 folder. This should get LV 2010 working although there are some caveats. If you do this, you will not be able to use Vision Builder AI and most likely the Vision RTE because they have similar dependencies. If you do not have either of those packages, I would not worry about those. The other thing is that the dll will no longer work properly with LV 2009. We know this is not ideal and are looking at other ways around this.

-Zach