1. Due to disable in you UAC.

To fix it just simply go to your control panel in USER ACCOUNTS and enable the UAC.

note:- Never late your machine UAC disable…..it create a security hole. if someone suggest to disable UAC then it would be the most worst idea anyone can suggest you.

2. Feature of Gadget might be off.

To fix it go to control panel —> Program and Features

on the right of this window you can see the ‘Turn windows feature on or off’ click on it…and wait for while….it will take some time to load the contents….scroll down in this window you can see the ‘Windows Gadget Platform’ just make a check mark on it.viola…. now you can play with your gadget.

Here the snapshot is.

you can donwload your gadget from here

So, What’s new in IE9?
First, there’s a new javaScript engine called”Chakra”. It is a much faster engine then that of its previous version of IE,a and it currently performs somewhere inthe middle compared to other major browsers. The interesting thing about it is that IE9 will run Chakra(and thus, JavaScript code) on a separate thread, on a separate core(if available).

That’s not the only thing that IE9 handed….it handles text, graphics,and SVG rendering will be hardware acclerated as well, providing, according to Microsoft at least, better performance than other Browsers.

The main technologies to call out here broadly are HTML5, CSS3, DOM, and SVG,” Microsoft writes, “The IE9 test drive site has more specifics and samples. At this time, we’re looking for developer feedback on our implementation of HTML5′s parsing rules, Selection APIs, XHTML support, and inline SVG. Within CSS3, we’re looking for developer feedback on IE9′s support for Selectors, Namespaces, Colors, Values, Backgrounds and Borders, and Fonts. Within DOM, we’re looking for developer feedback on IE9′s support for Core, Events, Style, and Range.”

At the Platform Preview site, there’s a whole bunch of browsers tests to perform, and, of course, you can download the latest IE9 build – new territory for Microsoft.

Gadget are nothing moreover than a little but powerful handy tool. you might get surprised when you know how easy they are to create. In fact, if you know HTML, CSS, and JavaScript, you’re well on your way.

 

In short if I have to say what is Gadget, then  simply I say it is made of nothing more than of a HTML and XML defination files. There may be some gadgets which include other files like PNG and JPEG for image and also STYLE SHEETS (CSS), and too some scripting languages.All of these are collected in file and that is just ends with name as *.gadget (ie weather.gadget).

 Now to create the gadget you need two things specially they are

1. A “manifest” file named Gadget.xml. This manifest contains all the settings for your gadget, including the gadget name, author and copyright information, and information about the HTML page that makes up the actual gadget.

2. An HTML file (for example, Test.htm). Although they might not look like it, gadgets are really nothing more than HTML files: you simply create an HTML file, add the appropriate tags and script code, and you’ve got yourself a gadget.

 

You may have a Question how can I have these files but don’t worry abt this coz I have got a example of  Manifest file you can just copy and save it in Gadget.XML.Here below is a “manifest” file

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<?xml version=”1.0″ encoding=”utf-8″ ?>

<gadget>

 <name>My First Gadget</name>

    <author>The Microsoft Scripting Guys</author>

    <copyright>2006 Microsoft Corporation</copyright>

    <description>Sample gadget that returns the name of the installed operating system.</description>

    <icons>

        <icon>icon.png</icon>

    </icons>

    <version value=”1.0.0.0″ MinPlatformVersion=”0.1″></version>

    <sidebar>

        <type>html</type>

        <permissions>full</permissions>

        <code>test.htm</code>

        <website>www.microsoft.com/technet/scriptcenter</website>

     </sidebar>

</gadget>

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Before you ask, yes, you can simply copy this file and use it pretty much as-is, just making changes (as needed) to a few of the tag values. (And don’t forget, you must name the file Gadget.xml.) The tags you might want to/need to modify are specified in the following table:

And also I have got a example of one HTML file…… You can just copy and use this one

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<html>

<head>

    <title>My Gadget</title>

    <style>

        body{width:120;height:160;font:8 pt Arial;color:white;

        filter:progid:DXImageTransform.Microsoft.Gradient(GradientType=1, StartColorStr=”#000000″,

            EndColorStr=”#0000FF”)}

    </style>

</head>

<script>

 

Sub Window_OnLoad

    RunSub

End Sub

     Sub RunSub

        strComputer = “.”

        Set objLocator = CreateObject(“WbemScripting.SwbemLocator”)

        Set objWMIService = objLocator.ConnectServer(“.”, “root\cimv2″)

        Set colItems = objWMIService.ExecQuery(“Select * From Win32_OperatingSystem”)

        For Each objItem in colItems

            DataArea.InnerHTML = objItem.Caption

        Next

    End Sub

</script>

<body>

    <input value=”Run”><P>

    <span></span>

</body>

 </html>

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Now you need to save this file in name as you type the code file name in manifest file…. Then complie it in a folder and give it a name end with .gadget

And the final part copy your folder of gadget and past it in to a location

%userprofile%\appdata\local\microsoft\windows sidebar\gadgets

 

Here the link i tooked the help:-

http://www.microsoft.com/technet/scriptcenter/topics/vista/gadgets-pt1.mspx