Which file in "MySQL-5.0.27-win32" folder do i need to backup? Ok, I am using a pretty old MYSQL "mysql-5.0.27-win32" and the file and the structure maybe different from the latest Mysql (mysql 7).

Here is the current structure of of mysql-5.0.27-win32:


In "mysql-5.0.27-win32" folder:
bin
data
Docs
Embedded
examples
include
lib
mysql-test
scripts
share
sql-bench
my-huge.ini
my-innodb-heavy-4G.ini
my-large.ini
my-medium.ini
my-small.ini



In "data" folder:
mysql
mydatabase

...some other databases that I don't touch....

my-PC.err
my-PC.pid
ib_logfile0 ---> this is a file, not a folder
ib_logfile1 ---> this is a file, not a folder
ibdata1 ---> this is a file, not a folder



the "mydatabase" folder has file such as .frm, .MYD, .MYI for each of its table, 
"mydatabase" also has "db.opt"


Ok, here is the scenarios. I finished developing my WebApp using mysql-5.0.27-win32in my Local Desktop PC. Now it is a time to deploy my app. 

To deploy, I copy the whole mysql-5.0.27-win32 folder (which contains the current DB structure + some basic data) into Virtual Server. 

So, there will be 2 same folders the original mysql-5.0.27-win32 in the Local PC &amp; the copy  mysql-5.0.27-win32 in the Virtual Server. At the beginning, these 2 folders are exactly the same. They have the same DB structures (ie same number of tables &amp; columns in the tables) &amp; same data stored in the tables.

From now on, my website will store user data directly to the copy mysql-5.0.27-win32 folder in Virtual Server (VPS). But if the VPS got shutdown then I will lose all data. 

Thus I want to back up daily the "mydatabase" from the copy mysql-5.0.27-win32.

So which file in the "MySQL-5.0.27-win32" folder do i need to backup so that when I put them into the original mysql-5.0.27-win32, then I can have exactly the same info as I have in the copy mysql-5.0.27-win32?
http://dev.mysql.com/doc/refman/5.1/en/windows-installation-layout.html

It would be the data folder that you'd want to back up for the data, but you might want to back up other folders depending on your setup.