AIR 3.4.x fails to install on WindowsXP

Hi

We have a proprietary application that uses flex for the gui so we have a .air component to be isntalled on the user's machine. There seems to be an intermittent problem with the installation.

Some machines have AIR v2.6 on them and it is expected that the new 3.4 installer will overwrite the existing version. On 85% of the installs this works fine but on the rest it fails. Our workaround is to uninstall the existing AIR version first and then try the install of our app. This install fails on 5% of attempts but after a few tries and sometimes a PC restart, it works.

Please see the excerpt from the AIR log below from a failed install -

[2013-01-11:16:34:15] Runtime Installer begin with version 3.4.0.2540 on Windows XP x86 [2013-01-11:16:34:16] Commandline is: -silent -location C:\Company\AIRComponent "C:\Program Files\Company\air\EMSClient.air"

[2013-01-11:16:34:16] No installed runtime detected [2013-01-11:16:34:16] Invoking Application Installer for combined install [2013-01-11:16:34:16] Launching subprocess with commandline C:\DOCUME~1\rskingsl\LOCALS~1\Temp\AIR53.tmp\Adobe AIR\Versions\1.0\Adobe AIR Application Installer -runtime C:\DOCUME~1\rskingsl\LOCALS~1\Temp\AIR53.tmp -silent -withRuntime -url -location C:\Company\AIRComponent file:///C:/Company/air/EMSClient.air<file:///C:\Company\air\EMSClient.air>

[2013-01-11:16:34:19] Application Installer begin with version 3.4.0.2540 on Windows XP x86 [2013-01-11:16:34:19] Commandline is: -runtime C:\DOCUME~1\rskingsl\LOCALS~1\Temp\AIR53.tmp -silent -withRuntime -url -location C:\Company\AIRComponent file:///C:/Company/air/EMSClient.air<file:///C:\Company\air\EMSClient.air>

[2013-01-11:16:34:19] No installed runtime detected [2013-01-11:16:34:28] Unpackaging file:///C:/Company/air/EMSClient.air<file:///C:\Company\air\EMSClient.air> to C:\Documents and Settings\rskingsl\Local Settings\Temp\fla54.tmp [2013-01-11:16:34:42] Application signature verified [2013-01-11:16:34:42] Unpackaging/validation complete [2013-01-11:16:34:42] Converting unpackaged application to a native installation package in C:\Documents and Settings\rskingsl\Local Settings\Temp\fla55.tmp [2013-01-11:16:34:47] Native installation package creation succeeded [2013-01-11:16:34:47] Starting silent combined runtime and app install.

Installing runtime version 3.4.0.2540.

Installing app UMSEMSClient-3-0-0- version 3.0.0 to C:\Company\AIRComponent using the source file at file:///C:/Company/air/EMSClient.air<file:///C:\Company\air\EMSClient.air>

[2013-01-11:16:34:47] Installing msi at C:\DOCUME~1\rskingsl\LOCALS~1\Temp\AIR53.tmp\setup.msi with guid {14DC0059-00F1-4F62-BD1A-AB23CD51A95E}

[2013-01-11:16:35:02] Installing msi at C:\Documents and Settings\rskingsl\Local Settings\Temp\fla55.tmp\setup.msi with guid {E96EF429-0B0E-8887-1599-931F24D07708}

[2013-01-11:16:35:03] Error occurred during msi install operation; beginning rollback: [ErrorEvent type="error" bubbles=false cancelable=false eventPhase=2 text="1612" errorID=0] [2013-01-11:16:35:03] Rolling back install of C:\Documents and Settings\rskingsl\Local Settings\Temp\fla55.tmp\setup.msi [2013-01-11:16:35:04] Rolling back install of C:\DOCUME~1\rskingsl\LOCALS~1\Temp\AIR53.tmp\setup.msi

[2013-01-11:16:35:09] Rollback complete

[2013-01-11:16:35:09] Got an unexpected fatal error while in stateInstalling: [ErrorEvent type="error" bubbles=false cancelable=false eventPhase=2 text="1612" errorID=0] [2013-01-11:16:35:09] Application Installer end with exit code 7 [2013-01-11:16:35:09] Subprocess app installer failed (7) [2013-01-11:16:35:09] Runtime Installer end with exit code 7

We have no idea what is going wrong and why it's only happening on a few installs. We use WinXP machines.

Thank you.