![](\"http:\/\/www.installaware.com\/blog\/pics\/code-part\/before-label.png\")
<\/p>\n
becomes:<\/p>\n
![](\"http:\/\/www.installaware.com\/blog\/pics\/code-part\/after-label.png\")
<\/p>\n
So now, instead of making changes all over the place in the MSIcode script, I only have to make one change under the Label<\/span> command. That way, I can re-use this code block in other projects:<\/p>\n I can also build in more sophisticated behavior, adding more MSIcode commands. Lets say you want to run two programs – one might be a tray application and the other one the “real” application.<\/p>\n Quite easily done. Extensibility and scalability are everything these days!<\/p>\n And now for some server side code.<\/span> First, please make sure you’re familiar with a server side scripting language like PHP or ASPX. Please visit www.asp.net<\/a> and www.php.net<\/a> if you need a jumpstart. I’ll assume that you’ve done your homework and that you can follow the simple scripts provided below.<\/p>\n First some PHP. <\/span>If you remember, I pass some parameters from my MSIcode InstallAware<\/span> setup\/client script to the web\/server script as URL parameters. In PHP, URL parameters are stored inside a predefined variable called $_GET<\/span>, which is a global array. If you want to read a user’s serial number and your parameter is called serial<\/span>, you can try the following:<\/p>\n $serial = strip_tags($_GET[‘serial’]); Now, the PHP script variable $serial<\/span> has our parameter’s value. Let’s see if the serial number provided is actually valid:<\/p>\n if ( CheckIfLegimitate($serial) ) If the serial is valid, the PHP script above returns “1”, or “0” otherwise. Either way, the return value is appended with a comma delimited random number. Back on the InstallAware<\/span> setup\/client side, I read this value using the “Download File<\/span>” MSIcode command, and I then parse it using Parse String<\/span>; which lets me obtain both the status code (“1” or “0”), and of course the random number.<\/p>\n Next\u00c2\u00a0post: Database schema scripts and more code. It’s going to be the last post from these series so, stay tunned!<\/p>\n Panagiotis Kefalidis Hi all! It’s been a few days since my last post about wrapping our update mechanism around your application and it’s time for some web server code samples; but first, I wanted to make an enhancement to the update script. If we want to change our “Run Program As” commands, we’ll have to edit multiple … <\/p>\n![](\"http:\/\/www.installaware.com\/blog\/pics\/code-part\/the-label.png\")
<\/p>\n![](\"http:\/\/www.installaware.com\/blog\/pics\/code-part\/the-label-tray.png\")
<\/p>\n
\n<\/em><\/p>\n
\nreturn “1,”.srand(time());
\nelse
\nreturn “0,”.srand(time());<\/em><\/p>\n
\nSoftware Design Team Lead
\nInstallAware Software Corporation<\/p>\n","protected":false},"excerpt":{"rendered":"