These following Matrimonial requirements Must be Checked Before Purchasing :

Scripting language :

1. ASP Classic 2.0 or Higher.
2. ASP.Net Version 2.0 or Higher.
3. PHP 4.0 or Higher.

Database Support :

1. My SQL Database 4.0 or Higher.
2. PHPMyAdmin [For Accessing My SQL database].
3. MSSQL Server 7.0, 2005
4. MS-Access 2000 or Xp

Server Requirments :

1. Parent Path Enabled from Control Paneled or Enabled By Service Provider. 
2. Folder Read Write Permissions for Uploading Photographs by Users.
3. MY SQL ODBC Driver 3.0, 5.0 or Higher
4. Mail Component [CDO, Persit, Dundas, Aspmail, Jmail].
5. ActiveX / XML Component
     a) WinHttp.WinHttpRequest.5.1
     b) MSXML2.ServerXMLHTTP

To Test your Server for Above requirements,
Download Testing Script for your Server : Download Now
[Unzip the Folder and upload on your server and run the http://yourdomainname.com/servertest]