[wix-users] Permission to Stop/Start a Service from a Custom Action on Button click

[Ven H]

Thanks a lot. I am already an Administrator. That's why I am confused, as
to why it is not working.

Regards,
Venkatesh

On Wed, May 30, 2018 at 5:51 PM, Gerhard Matzen <gmatzen at osisoft.com> wrote:

> You can make sure the user is privileged in a launch condition for the MSI.
>
> <Condition Message="You must run this installation kit as administrator.
> If you are running on Vista/Server 2008 or greater, you must also run the
> installation from an elevated command prompt.">Privileged</Condition>
>
> If you are worried about the "Programs and Features" Change/Modify button
> not launching your MSI elevated, you should be able to set the
> NoElevateOnModify value in the registry.
> This DWORD goes under:
> "Software\Microsoft\Windows\CurrentVersion\Uninstall\YouAppName"
>
>
> -----Original Message-----
> From: wix-users <wix-users-bounces at lists.wixtoolset.org> On Behalf Of Ven
> H via wix-users
> Sent: Wednesday, May 30, 2018 4:07 AM
> To: WiX Toolset Users Mailing List <wix-users at lists.wixtoolset.org>
> Cc: Ven H <venh.123 at gmail.com>
> Subject: [wix-users] Permission to Stop/Start a Service from a Custom
> Action on Button click
>
> I have a Custom Action that is called on a button click. In this button
> click, I have to restart the Sql Service on the local machine. After
> building this msi, if I right click and install, it fails while trying to
> Stop & Start the service using ServiceController class (throws an access
> denied exception). I tried with the WMI approach also, but the same result.
>
>  But if I open up a PowerShell or Console window as Administrator and
> execute the msi using msiexec command, it works fine. I am already an
> administrator in the machine. I am not able to understand why it doesn't
> work in the first case, whereas it works in the second case, even though I
> am admin. How can I ensure in my Custom Action code to behave like the
> second case?
>
> I tried with and without Impersonate attributes on the Custom Action, but
> no luck. Since it is called on button click, I am not able to make the CA
> deferred and hence it is immediate. In my CA code, when I check the current
> user using Environment.GetEnvironmentVariable("USERNAME") and also using
> System.Security.Principal.WindowsIdentity.GetCurrent(), it shows the same
> in both the cases. I am a little confused. Can anyone please help me?
>
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