Which OS are you running? If it is Windows Server operating system, the you need to select "Application Server" in order to install the necessary server services including IIS. If you are on Vista...

If you are trying to connect through ASP.NET or C#, then you should be able to connect it using OleDBConnection with the MSDAOSA provider.

Could you please provide us with some useful information to diagnose the problem? Your current description may leads to the below reasons behind your server's problem.

- You are not connected to...

PayPal integration is very much simple. If you just want to accept payments(direct payment approval) and want to use PayPal website payments pro then it is one function call to accept the payment.
...

As the error message itself suggests, a web page can have only one run at server form tag.

Please check your markup, you must have more than one form tags written there.

I am receiving the below error regarding the AJAX Extensions. My host says that extensions are already installed on the server. Hence, do not include them in the bin directory of your asp.net...

I do not have much idea. Hence, asking here.

As per MSDN,
The Full trust Level is a special case. Because it is exactly equivalent to having full trust in the local machine zone, the ASP.NET...

I have recently developed one website. After uploading this website to the server, I have received a few security exception on errors on some of my pages. I contacted my hosting provider on this and...

Navigate to the directory where your VPS files are created(virtual hard disk file, configuration file, etc).
Right Click => Properties => Security => Select Virtual Machine Account User => Assign...

Actually, you may try the code shown here. It is working with windows application perfectly, not sure for the web application.
...

View state is to store information temporarily. The life time is limited to the life time of the particular page. It is generally used to store the page fields.

Application state is global to the...

How and why are you trying to connect to the remote machine? If we know this, we can say something. To find the computer over the internet independently, it must have the static(dedicated) IP address.

When you say I have "visual studio 2008 express" then I assume that you have a collection of all Express editions. Microsoft is providing ISO image of all these applications and the visual web...

There may be some functions available in Javascript to deal with the COM ports. But you may need to take care of plenty of things such as fireawall exception, Javascript enabled web browser, etc.
...

You first start with gathering specifications as to what features you should include and what features to exclude. To decide this, you need to look at some good social networking websites such as...

The most likely, when you transmit the file and then trying to delete the transmitted file, you may receive the IO exception. Because system may try to delete a file that it currently in use.

It...

There is no Visual Studio Express as far as I know. Microsoft has launched Visual Studio Express Editions in which VC# Express, VB.NET express, Visual Web Developer Express, etc are included....

You can use this in C# windows app or service. You may get help here. http://www.c-sharpcorner.com/UploadFile/eclipsed4utoo/SerialPortCommunication12082008111137AM/SerialPortCommunication.aspx

In...

This should resolve the problem.

Visual Studio => Tools => Options => Database Tools => Design Time - Validation Database => Connection options

Set the sql server instance name to Blank. ...

itextsharp is a good option. You may check the sample code here.

http://ask4asp.net/post/creating-PDF-using-NET-itextsharp-component-vb-NET.aspx

ViewState may be causing the problem. If this continues to occur, consider placing hidden input control and copy the value of the textbox to that hidden upon the page posting.

It is easy to create the word document using C# . However, if I were you, I would like to go for the HTML based emails. Moreover, it is very easy to send emails using C# with/without attachments.

You can use the client side javascripts to achieve this. You can use Onchanged attribute to trigger the javascript function and then setting up the textbox value to the desired one.

You can use...

You need to write your own function to check the minimum password requirements.
You can check the length of the password string.
Check for any sub-string that contains only digits
Check for any...

You can use DataList because it allows the displaying of unbound data. Please try with it.

You may use the compare validator. You may also convert both textbox strings to the same datetime format and then compare them using if.

As you currently have MD5 encrypted user passwords, you can use the membership functions to imports them to membership roles programatically. The build-in classes are Membership, MembershipUser,...

you just skip this line.

cmd.Parameters.AddWithValue("@userid", ????????);


Because autoincrement columns do not need anything whenever you add a new record.

The easiest way is to bind that SQLDataSource to the Gridview's datasource and display the gridview.