Microsoft Windows

Possible causes could be
-Bad configuration of TNSNAMES.ORA.
-No repository is located where is the service name identifier

The solution presented are:
-First Check TNSNAMES.ORA file of the database or the client you are using and check the settings, the most important are the HOST, SID and the ALIAS of the database, see if they match data from the computer that owns the database (server). The TNSNAMES is usually in a folder called Network or on NET80 in the case of some customers ORACLE.

A typical TNSNAMES of the database is as follows:
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = Server Name) (PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = Service Name)
)
)

-Check that the service name matches the name that Windows provides, in the case of Oracle Database XE is always the XE service, other service facilities will be named as he was appointed at the time of creating the basis data.

In order to watch movies online:

1. Your connection speed is key. If you are on a company network, DSL, or other broadband connection, you are wired for high quality.
2. If you are connected by modem, the films will be a bit small, but you can see them nonetheless.
3. Look for streaming video. This means that you don't have to download the entire movie, but you can start watching it as soon as the download starts.
4. Get the software you need. All sites generally offer download links.
5. Select a movie
6. Close all other programs. Any software running in the background can slow your computer down and affect the quality of the film.
7. Make some popcorn, turn down the lights, enjoy.

There are many popular movie players which allow you to watch movies online and to download your favorite movie some of them are:

•   VLC player: VLC players acts as the cross-platform open-source multimedia framework, player and server which is capable of reading most audio and video formats like MPEG-2, MPEG-4, H.264, DivX, MPEG-1, mp3, ogg, and many others
• Quick Time player: This is also one of the most popular movie players. You can download this player free of cost from online resources. This player supports both Windows and Mac
• Real Player: Real Player and Windows media player can also be downloaded from the net free of cost but these players are suitable for some movies only
• Windows Media Player: This players is mostly found in majority of the PCs

The windows sidebar gadgets are noting more than small HTML files that are added by the OS to the sidebar automatically. The interface between the file and the OS is a XML file that specifies some important facts and looks like this:<code><?xml version="1.0" encoding="utf-8" ?><gadget>  <name>MyGadgetName</name>  <namespace>Namespace.Gadget</namespace>  <version>1.1</version>  <author name="tuwien.ac.at">    <logo src="images/logo.png" />    <info url="http://tuwien.ac.at" />  </author>  <copyright>&#169; Wien, 2009 </copyright>  <description>Newsgadget</description>  <icons>    <icon width="64" height="64" src="images/icon_64.png" />  </icons>  <hosts>    <host name="sidebar">      <base type="HTML" apiVersion="1.0.0" src="main.html" />      <permissions>Full</permissions>      <platform minPlatformVersion="1.0" />      <defaultImage src="images/bg_drag.png"/>    </host>  </hosts></gadget></code> The most important option is the base tag. It specifies the path to the entrypoint - in my example this is the main.html. There are some other options like logos, URLs or version numbers which can be figured out very easily. All that I had to do now was creating the main.html and writing some javascript code to parse the remote RSS feed:<code>function getRSS() {     try     {        var req = null;         if (window.ActiveXObject)        {            req  = new ActiveXObject('Microsoft.XMLHTTP');         }        feedUrl = 'http://mydomain.com/myfeed.rss?'+Math.random();        req.open("GET", feedUrl , true);         req.setRequestHeader("Content-Type", "text/xml");         req.onreadystatechange = function()            {                if(req.readyState == 4)                {                    if(req.status == 200)                    {                        var rssXML = req.responseXML;   // assign the XML file to a var                        if (parseRSS(rssXML) === true) {                            /* YESSSS */                        } else {                            /* UUPS */                            connectionError();                        }                                        }                        else                        {                        alert("Error: returned status code " + req.status + " " + req.statusText);                        connectionError();                    }                }            };        req.send(null);     }    catch(err)    {        alert("General Error: " + err);        connectionError();    }}</code>What this function does is creating a connection to a given rss feed and fetching the data. If that is possible it sends the data to another function named parseRSS() which looks like that:<code>function parseRSS(rssXML) {    var rssItems = rssXML.getElementsByTagName("item");    feedItems =[];    var feedCount=0;    var feedDate;        feedDate = rssXML.getElementsByTagName("dc:date");    if(feedDate[0] !== null) {        feedDate = feedDate[0].firstChild.nodeValue;    } else {        feedDate ="";    }        for(i=0;i<rssItems.length;i++) {        try {                    var title = rssItems[i].getElementsByTagName("title");            var description = rssItems[i].getElementsByTagName("description");            var link = rssItems[i].getElementsByTagName("link");                        if(title[0] !== null && description[0] !== null && link[0] !== null) {                    var feedItem = [];                var relatedItems= [];                    feedItem[0]= title[0].firstChild.nodeValue;                feedItem[1]= description[0].firstChild.nodeValue;                feedItem[2]= link[0].firstChild.nodeValue;                                feedItems[feedCount]= feedItem;                feedCount++;            }                         } catch(err) {}    }    if(feedCount>0) {        return true;    } else {        return false;    }}</code>No I have an associative array named feedItems[] which contains all the fetched RSS data. This information can now be desplayed very easily using basic javascript functionality.Finally I zipped all my files (gadget.xml, main.html, javascript-files, images, etc.) and changed the file suffix from .zip to .gadget. On Windows Vista or Windows 7 system a simple doubleclick on this archive is enough and the gadget will be installed.

 To create a CD that will auto-run is actually very simple. All you need to do is to create the file ‘AUTORUN.INF’ in the CD's root directory and put some simple commands in the file to indicate what you want to be auto-run. The file ‘AUTORUN.INF is a simple text file - so use notepad to edit it.The ‘AUTORUN.INF’ file must start with the following line:

[autorun]

It can then include any of the following (optional) commands - with each command placed on a separate line:icon=icon.icoSpecifies the name of the icon file that will be used by explorer as the icon for that CD.This may be the name of an executable file that contains an icon. If the executable contains more than one icon then an optional index field can be specified to indicate which icon to use:icon=iconfile,indexlabel=text label Text label that will be displayed against the CD within explorer.open=exefileSpecifies the command that is to be autorun when the CD is first inserted. It may include a path and any arguments.ShellExecute=datafileSpecifies an application or data file that is to be opened. Windows will launch the application associated with that file type to open the datafile.Note: ShellExecute is not supported under older versions of Windows (i.e. under Windows 95 or Window 98). For example to create a CD that will autorun the program ‘setup.exe’ would require an AUTORUN.INF file similar to:

[autorun]
open=setup.exe
icon=setup.exe

To create a CD that will autorun to open the html file ‘index.htm’ would require:

[autorun]
ShellExecute=index.htm
icon=index.htm

However, since some older versions of Windows do not support ‘ShellExecute’ a less elegant alternative would be:

[autorun]
open=command /c start index.htm
icon=index.htm

Be aware that the use of ‘command’ and ‘start’ restrict this to machines running Windows.