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A library/tool in Java for automatic updating of applications with minimum user interaction and small developer effort. This is the main library. Use this in your projects.

There is a newer version: 0.9.0.2

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/*
 * IzPack - Copyright 2001-2008 Julien Ponge, All Rights Reserved.
 * 
 * http://izpack.org/
 * http://izpack.codehaus.org/
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 *     
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*
 * This script can be used to elevate rights through the UAC on Windows Vista.
 * Run it as follows:
 *    elevate aplication.exe "argument1 argument2 argument3"
 *
 * Adapted from Aaron Margosis 'elevate.js' script, see
 * http://blogs.msdn.com/aaron_margosis/archive/2007/07/01/scripting-elevation-on-vista.aspx
 *
 * The getUniversalPath function provides a workaround for network drives, see
 * http://blogs.msdn.com/cjacks/archive/2007/02/19/mapped-network-drives-with-uac-on-windows-vista.aspx
 */

function getUniversalPath(path)
{
    var file = fso.GetFile(path);

    var absPath = file.path;
    if (absPath.substring(1, 2) != ":")
    {
        return absPath;
    }

    var shareName = file.Drive.ShareName;
    if (!shareName)
    {
        return absPath;
    }

    return shareName + absPath.substring(2);
}

var fso = new ActiveXObject("Scripting.FileSystemObject");
var Shell = new ActiveXObject("Shell.Application");
var Application = WScript.Arguments(0);

var Arguments = "";
for (var Index = 1; Index < WScript.Arguments.Length; Index += 1)
{
    if (Index > 1)
    {
        Arguments += " ";
    }

    var Arg = WScript.Arguments(Index);

    if (Index > 1 && WScript.Arguments(Index - 1) == "-jar")
    {
        // If the JAR file is on a mapped network drive, we have to convert it's path to UNC.
        Arg = getUniversalPath(Arg);
    }
    Arguments += "\"" + Arg + "\"";
}

Shell.ShellExecute(Application, Arguments, "", "runas");