Christian Froehlich wrote:
>
> Hi All,
>
> I have hit a conundrum here. I have an immediate custom action that gets a
> list
> of IIS application pools to be displayed in a ComboBox for user selection.
>
> Now as this needs to be executed before the user interface is shown, i
> have made
> this an immediate custom action. This seems to work fine for IIS 5.1/6.
> Today i tested this with IIS7 but to my dismay, it requires elevated
> privileges,
> something that cannot be done with an immediate action.
>
> The solution then is to make it a deferred custom action, however i am
> given to
> understand that these can only be scheduled to run in the
> InstallExecuteSequence?
> If that is indeed the case, how can i create a custom action that can run
> before
> the UI and use elevated privileges?
> Or is there a better way to get a list of application pools that does not
> require administrative access?
>
> For your information my custom action is written in C# and uses a
> DirectoryEntry
> to query the IIS metabase.
>
> Any help that could be given would be greatly appreciated.
>
> Many thanks,
>
> Christian Froehlich
>
>
>
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Hi,
I realise this might be a bit late for you, but this problem has been
frustrating me all morning, so I thought I'd suggest my solution.
I didn't really want a bootstrapper, because of the ARP issues. So, instead
I stuck this code at the top of my custom action to re-run the installer
with the appropriate privileges. It's not entirely elegant, but it seems to
do the trick with fresh installs and from ARP, and I haven't found any
issues with it so far.
WindowsPrincipal pricipal = new
WindowsPrincipal(WindowsIdentity.GetCurrent());
bool hasAdministrativeRight =
pricipal.IsInRole(WindowsBuiltInRole.Administrator);
if (!hasAdministrativeRight)
{
if (MessageBox.Show("This installer requires administrator
privileges.\r\n\r\nDo you want to attempt to restart it with administrator
privileges?", "Administrator Privileges Required", MessageBoxButtons.YesNo,
MessageBoxIcon.Warning) == DialogResult.Yes)
{
ProcessStartInfo processInfo = new ProcessStartInfo();
processInfo.Verb = "runas";
processInfo.FileName = "msiexec";
processInfo.Arguments = "/i " + session["OriginalDatabase"];
try
{
Process.Start(processInfo);
}
catch (Win32Exception)
{
//Do nothing. Probably the user canceled the UAC window
}
}
return ActionResult.UserExit;
}
Cheers,
Rich
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