Windows Service CreateProcessAsUser don't run some of the executables

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I have written a windows service in .net to call executables.

There is no problem when executing a .net executable like silverlight installer.

But when i try the same thing for another executable like winrar installer an exception is thrown at CreateProcessAsUser() method.

Method call is this

C#

CreateProcessAsUser(m_SessionTokenHandle, m_ApplicationPath, CommandLine, ref l_oSecurityAttributes,ref l_oSecurityAttributes, 0, creationFlags, envBlock, WorkingDirectory,
                    si, pi)

CreationFlags parameter is set as CREATE_UNICODE_ENVIRONMENT|DETACHED_PROCESS.

Is there any idea about this exception?

Posted 25-May-12 0:39am

Member 9005298

Updated 25-May-12 1:01am

RaisKazi

v2

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**Zoltán Zörgő** · Accepted Answer · 2012-05-25T02:36:00

Questions:
- What is the exception you got? Error codes might give you ideas.
- What is the OS, you are dealing with? Be aware, that installers that rely on windows installer service, don't need elevated rights with UAC enabled, but standalone installers do.
See this discussion: http://stackoverflow.com/questions/2426594/starting-a-uac-elevated-process-from-a-non-interactive-service-win32-net-power[^]