Adobe Air updater goes Error #1034

Hi,

we've packaged an air application with an old version of air runtime that is automatically deployed to our customer computer.

Everything goes well on install, but when we launch our application, it logically propose our customer to update to the last version of Air.

The problem is that during the update process of air runtime (our application is still running), we have an error #1034 appearing.

the Adobe Air Updater logs are the following :

[2012-01-06:10:40:11] Runtime Installer begin with version 3.0.0.4080 on Windows 7 x86

[2012-01-06:10:40:11] Commandline is: -silent -eulaAccepted

[2012-01-06:10:40:11] Installed runtime (3.0.0.4080) located at c:\Program Files (x86)\Common Files\Adobe AIR

[2012-01-06:10:40:11] Runtime Installer end with exit code 0

[2012-01-06:10:40:42] Launching subprocess with commandline c:\Program Files (x86)\Common Files\Adobe AIR\Versions\1.0\Resources\Adobe AIR Updater -updatecheck

[2012-01-06:10:40:42] Runtime Installer begin with version 3.0.0.4080 on Windows 7 x86

[2012-01-06:10:40:42] Commandline is: -updatecheck

[2012-01-06:10:40:42] Installed runtime (3.0.0.4080) located at c:\Program Files (x86)\Common Files\Adobe AIR

[2012-01-06:10:40:42] Performing pingback request

[2012-01-06:10:40:43] Pingback request completed with HTTP status 200

[2012-01-06:10:40:43] Starting runtime background update check

[2012-01-06:10:40:43] Begin Background update download from http://airdownload.adobe.com/air/3/background/windows/x86/patch/3.0.0.4080/update

[2012-01-06:10:40:43] Unpackaging http://airdownload.adobe.com/air/3/background/windows/x86/patch/3.0.0.4080/update to C:\Users\ksaidi\AppData\Roaming\Adobe\AIR\Updater\Background

[2012-01-06:10:40:44] Unpackaging complete

[2012-01-06:10:40:44] Download success

[2012-01-06:10:40:44] Runtime updated downloaded

[2012-01-06:10:40:44] Exiting due to error: [ErrorEvent type="error" bubbles=false cancelable=false eventPhase=2 text="Unhandled exception TypeError: Error #1034" errorID=1034]

[2012-01-06:10:41:05] Runtime Installer end with exit code 7

The most disturbing is that if we close our application and run the updater alone, everything goes well, and our application is running perfectly.

Anyone have a clue on what is happening?

Thanks a lot

Antoine