nsIWinAppHelper

Used on Windows only to do some work from a special process that gets created with elevated privileges.
1.0
28
Introduced
Gecko 1.8
Inherits from: nsISupports Last changed in Gecko 1.9.2 (Firefox 3.6 / Thunderbird 3.1 / Fennec 1.0)

Implemented by: @mozilla.org/xre/app-info;1. To create an instance, use:

var xulAppInfo = Components.classes["@mozilla.org/xre/app-info;1"]
                 .getService(Components.interfaces.nsIWinAppHelper);

The nsIXULAppInfo and nsIXULRuntime interfaces are also implemented by "xre/app-info".

Method overview

void fixReg(); Obsolete since Gecko 1.9
void postUpdate(in nsILocalFile logFile); Obsolete since Gecko 1.9.2

Attributes

Attribute Type Description
userCanElevate boolean

Read only. Returns true only if all the following conditions are all true at once:

  • The operating system is at least Windows Vista
  • User Account Control is enabled
  • The user is an Administrator
  • The application is not already running with elevated permissions

Otherwise it returns false.

Methods

Obsolete since Gecko 1.9 (Firefox 3)

fixReg()

Invokes helper.exe with the /fixreg parameter. Note that this parameter was never actually supported.

void fixReg();
Parameters

None.

Obsolete since Gecko 1.9.2 (Firefox 3.6 / Thunderbird 3.1 / Fennec 1.0)

postUpdate()

Invokes helper.exe with the /postupdate parameter. This updates the uninstallation log so that the application can be uninstalled correctly after an update.

void postUpdate(
  in nsILocalFile logFile
);
Parameters
logFile

The file to use for the uninstallation log. The path is passed to helper.exe as the /uninstalllog parameter.

Document Tags and Contributors

 Contributors to this page: Sheppy, Neil, trevorh
 Last updated by: Sheppy,