A lot of questions, and here are my answers:

- xp_cmdshell is enabled

- SQL server version is 2008 (forum topic = 2008)

- I have the error with version 2008 and 2008...

The workaround:

SELECT

Message.value('ID[1]', 'int') AS ID,

Depending on your OS:

Windows server 2003 See http://support.microsoft.com/default.aspx?scid=kb;en-us;329332

Windows server 2003 See http://support.microsoft.com/kb/839279

Windows XP SP2 See

Problem solved.

With regmon, I located a lot of registry key which had full access for the user 'system', but oly 'Read' for the 'administrator'. After changing the permissions for all...

Extract of the log, just before the rollback :

...

DDSet_Entry: RunProcess started

DDSet_Status: CustomActionData: "C:\WINDOWS\Microsoft.NET\Framework\v2.0.40607\regtlibv12.exe" "C:\WINDOWS\Microsoft.NET\Framework\v2.0.40607\Microsoft.JScript.tlb";11

Action 8:55:11: RunProcess. Registering Type Library

RunProcess: Executing: "C:\WINDOWS\Microsoft.NET\Framework\v2.0.40607\regtlibv12.exe" "C:\WINDOWS\Microsoft.NET\Framework\v2.0.40607\Microsoft.JScript.tlb"

RegisterTypeLib of C:\WINDOWS\Microsoft.NET\Framework\v2.0.40607\Microsoft.JScript.tlb failed : 8002801c

DDSet_Status: Process returned 5

DDSet_Error:...

Already tried to install independent : same error.

Also tried after uninstall og framework 1.1 : same problem.