n your asp.net application/website you can count
how many visitors are browsing your website easily.
for this add a Global.asax file in your website.
then add the following codes in that file -

you should backup your database file of your
windows software.there are many reasons why you
will backup your database file.i will not write
details about that.i showing here how to
backup your database file for safety of your
database -

It is needed to check whether your website is
available or down.It's better you create a WPF
application to check that.you can also check
status periodically besides checking status on
a button click.the following program shows how
to check the website status by clicking a button -

this post will show how to create a file in dotnetnuke module
directory and write some data in the file.you can use this
technique in asp.net application too -

Nowadays internet is being part of our life.So you need to
be cautious when you browsing internet.Following are some
guidelines to be safe -