Archive for the ‘Computers and Internet’ Category

Recently in one of my machines I got the above HTTP error when running an application hosted on IIS 7. The detailed error was as below.

IIS Error

“This configuration section cannot be used at this path. This happens when the section is locked at a parent level. Locking is either by default (overrideModeDefault="Deny"), or set explicitly by a location tag with overrideMode="Deny" or the legacy allowOverride="false".”

After doing some troubleshooting I was managed to get this error fixed by reinstalling ASP.Net by running the aspnet_regiis –ir command.

For more information on running the command please refer to my old article Unable to start debugging on the web server.

Recently suddenly my computer lost Windows Aero effects. After trying out many things I found that it is due to the Log Me In mirror driver.

It seems Log Me In mirror driver is not compatible with Windows Aero effects so if you also lost Windows Aero and you have Log Me In installed on your machine to activate Aero back first try disabling “LogMeIn Mirror Driver” and restart your machine.

This can be done by going to Device Manager by clicking,

Start –> Control Panel –> Administrative Tools.

Then double click on Computer Management. Now in the Computer Management window click on the Device Manager.

Another way to reach the Device Manager is by pressing the Windows key and the Pause key in your keyboard simultaneously.

Now expand the Display Adapters and right click on LogMeIn Mirror Driver and click on Disable.

Device Manager

This will disable the Log Me In mirror driver enabling Windows Aero after you restart your machine.

If you cannot see Aero effects after the restart search for the word Aero in your start menu and click on the Aero troubleshooter and follow the wizard to get Aero effects back.

Aero

As I mentioned in my last post, I will list down some uses of Word field codes here. If you would like to know what they are I invite you to read my previous post on field codes.

Notes –

  • Always remember to user Ctrl + F9 to put curly braces, sorry no copy pasting, you have to type all.
  • If the codes are misbehaving, right click and click on Update Field.
1. Using Word how to greet the user according to the time of the day.

{ If "{ Time \@ "HH:mm" }" > "12:00" { If "{ Time \@ "HH:mm" }" > "15:00" { If "{ Time \@ "HH:mm" }" > "18:00" "Good Night" "Good Evening" } "Good Afternoon" } "Good Morning" }

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2. Concatenating text and displaying in Word.

Welcome { UserName } you are reading { FileName \* MergeFormat }.

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3. Displaying page number in odd pages and text on others in Word.

{ If { =Mod({ Page }, 2) } =1 { Page } "PTO" }

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4. Using Word skipping page number on first two pages and then showing page numbers starting from number 2.

{ If { Page } < 3 "" { ={ Page } – 1 } }

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5. Displaying last saved user name on the last page in Word.

{ If { Page } = { NumPages } "This { FileName } was last saved by { LastSavedBy } on {DocProperty LastSavedTime }. Document was edited for { EditTime } minutes." "" }

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6. Displaying number of characters, words, paragraphs, pages in a Word document.

This document has { NumWords } words in { NumPages } pages.

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This document has { NumChars } characters in { DocProperty Paragraphs } paragraphs.

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Field Codes in Word

Posted: November 3, 2011 in Computers and Internet, Word

When playing with Microsoft Word I found a nice feature from which we can do few more things with Word other than typing documents.

It is known as field codes. Below are some of them with their descriptions.

Field Code

Description

DocProperty Retrieves current document properties.
NumChars Retrieves the number of characters in the current document.
NumWords Retrieves the number of words in the current document.
NumPages Retrieves the number of pages in the current document.
Page Retrieves the current page number of the document.
LastSavedBy Retrieves the name of the user who saved the document last.
SectionPages Retrieves the total number of pages in the current section.
Template Retrieve the name of the title the document is based on.
Time Retrieves the current system time and you can format the time using date formats.
UserInitials Retrieves the current user’s initials.
UserName Retrieves the current user’s name.

 

I did mention only few field codes above to just make you start thinking the things which can be achieved by using them in your documents.

To demonstrate I will create a Word document which greets the user with his name. To do this there are 2 ways, one is easy and the other is little hard.

Method 1

1. First the easy way, just open Word, place your cursor where you need your greeting to appear and click on Insert tab to show the insert ribbon. Then click on Quick Parts and then on Field

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2. From the field window select UserName field and choose an appropriate format from the format list and press ok.

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This will add the following to your Word document which is responsible in showing the current user’s name.

{ USERNAME  \* Caps \* MERGEFORMAT }

3. To hide the code and display the user name right click on the code and click on Toggle Field Codes.

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Since I did put the word Welcome in front of this the code the output appears as below.

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If you need to change the code you can right click on the user name displayed and click on Edit Field.

Method 2

Bit difficult way of doing the same is to just type in the code without the help of Word. Since we know what to type in, the trick is to press Control key and F9 (Ctrl + F9) keys before doing anything.

To get this done just go to the place where you need the user name to appear and then press Ctrl + F9 keys. This will add two curly braces (“{  }”) onto Word (Always press Ctrl + F9, never type the braces manually since then it will not work). Then just type in the code we used earlier and it will work the same way.

Knowing the below keyboard shortcuts will ease your life.

Ctrl + F9 – Will add code insertion points to Word.

Shift + F9 – Will toggle the currently selected field code.

Alt + F9 – Will toggle all the filed codes found in the Word document.

If you find that the codes are not working as they should be, simply try right clicking on it and clicking on Update Field.

Hope this is helpful to you and later I will be putting another post with some field codes in action.

As you might know TechEd Australia ended few weeks back. I am sure lot of you might not have the chance to visit it. The good thing is you can watch the recorded sessions online now by visiting the following site.

http://channel9.msdn.com/events/teched/australia/tech-ed-australia-2011

I think this will be mostly useful to people who didn’t visit TechEd and also to people who visited it to refresh their minds.

Even though it is always better to use complex passwords, you may get a requirement to allow users to have simple passwords. To allow domain users to use simple passwords you need to modify the domain policy. In my following post I am using a Windows 2008 R2 machine.

1. Start Group Policy Management by clicking Start –> Administrative Tools –> Group Policy Management in your domain server or type gpmc.msc on the run window.

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2. In the group policy management expand the forest node and then the domain node. By then you will see the domains available. Expand the domain you want the setting changed and right click on the Default Domain Policy item and select Edit. This will bring the Group Policy Management Editor.

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3. In the Group Policy Management Editor find the policy ‘Password must meet complexity requirements.’ by expanding Computer Configuration –> Policies –> Windows Settings –> Security Settings –> Account Policies and selecting Password Policy. Then right click and get the properties of the policy.

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4. To disable complex passwords select the Disabled radio button and click Apply.

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5. To check whether the setting is really applied you can close the Group Policy Management Editor and check the settings tab at Group Policy Management.

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Recently in an application we developed there was a requirement to stop the browser back button after user logs out of the application.

The reason behind this was to stop the security risk of another user without proper permissions peeking into the earlier users screens. If you notice in many applications if the browser back is not properly handled then after the user is logged out you can re visit the site by just pressing the browser back button. This happens because the browser shows the cached page when the back is pressed. Even if you have server side code to check for the user they will not fire since the page will load from cache.

With the limited time I found a genius idea to handle this in the internet. What this javascript does is it will always try to put the user back to the last page in the history. For example, I am having a login page and a default page which I am taking a user after he logs in. You need to place the following javascript in the default page to make the above happen.

  1. <script type="text/javascript" language="JavaScript">
  2.     window.history.forward(1);
  3. </script>

Then once a user logs out from the system and if presses the back button of the browser, when the default page loads it will put the user again to login (history forward) page which is the login page. Ultimately user needs to login again to go back to the site.

If you have not configured Azure Development Storage to use your SQL Server, then while running your application targeted for Azure you will see an error similar to the following.

“Windows Azure Tools: Failed to initialize Development Storage service. Unable to start Development Storage. Failed to start Development Storage: the SQL Server instance ‘localhost\SQLExpress’ could not be found. Please configure the SQL Server instance for Development Storage using the ‘DSInit’ utility in the Windows Azure SDK.”

To overcome this you need to run the DSInit command using Windows Azure SDK Command Prompt.

Step 1 – Start the Windows Azure SDK Command Prompt.

Step 2 – Type DSInit /sqlinstance:. on the prompt and press enter.

The dot (.) at the end denotes the local SQL Server instance running on your machine. DSInit command details are as follows.

Syntax:

DSInit [/sqlinstance:<SQL server instance>] [/forceCreate] [/user:<Windows account name>]

Description:

Initialize the development store for usage by

Reserving http ports for the blob, table and queue services for the current user, and

Creating the database needed by the blob and queue services

Options:

sqlinstance : the name of the SQL Server instance on the local machine that should

be used for Development Storage. The default is SQLExpress.

Use "." for unnamed instance.

forceCreate : recreate the database even if it already exists.

user : user for whom ports are to be reserved. By default it is the current user.

.

After doing the configurations it will display a success screen similar to the following.

Then when you run your Azure ready application the Azure Development Storage and Azure Development Fabric will get started and notify you on your system tray as shown below.

After a while your application will also start without complaining if it is Azure ready.

As you might know the new Skype allows us to share our desktop to another contact by only using Skype. Best things are it is free and we can share through internet. But this has a limitation which is you cannot share the screen with multiple contacts.

To overcome this I happen to find this nice Skype add-on named InnerPass Share and Collaborate which enable us to share our desktop with many people at once freely.

To get it installed go to Skype Extras Manager by clicking Tools –> Extras –> Get Extras.

Type InnerPass on the top left search box and press search.

Then on the left search results select the InnerPass Share and Collaborate add-on and install.

After installing you can launch InnerPass by clicking Tools –> Extras –> InnerPass Share and Collaborate. This will bring you a screen similar to the following.

You can click Get Started button to create your free InnerPass account and start using the features offered by InnerPass.

Some of the features are,

  • Managing meeting rooms.
  • Add contacts from other sources like Yahoo, Gmail, etc.
  • Schedule meetings.
  • Attend meetings.
  • Host meetings.
  • Sharing your screen.
  • Viewing others’ screens.
  • Share documents.

How many of you know that common and popular search engines like Google and Bing are providing many other functionalities than searching?

Yes it is true there are many functionalities within them that most of us don’t know.

Following are some features, you can try these out by typing the italic text in your favorite search engine.

  1. Finding the date and the time of a place. – “Time Sri Lanka”, “time Melbourne
  2. Checking spelling of words. – “Cheking”, ”mathmatics”
  3. Finding results of arithmetic. – “(25*34)+78”, “2**5”
  4. Finding the weather if a place. – “Weather Colombo”, “weather Changi”
  5. Finding the populations of countries or popular cities. – “Population UK”, “population Sri Lanka”
  6. Converting units. – “12.5km in Meters”, “3km in inches”
  7. Stock details. – “MSFT”, “AAPL”
  8. Find similar word (Synonyms). – “~Cooking”, “~hot drinks”
  9. Finding currency values. – “1 GBP in AUD”, “89.34 AUD in USD”
  10. Finding maps. – “New York Map”, “Sydney map”
  11. Finding definitions of words. – “Define Computer”, “define language”
  12. Other than above you can find about Books, Movies, Air Line Schedules etc. But they are widely for other countries like UK, US.

While searching you can use special characters like wild cards, concatenate, subtract to help while searching. Try them out to find the results by your own.