An ITIN (Individual Taxpayer Identification Number, sometimes called a PIN, Tax ID or Taxpayer ID) will serve as your identification number for filing your tax returns. If you do not qualify for an SSN, you will need to apply for an ITIN.
Active Server Page Extended ASP.NET script. An aspx file extension is associated with Active Server Page Extended format used by Internet Information Services (IIS) web server with server side scripting language ASP.NET used to dynamically generate websites. Generated output from an .aspx page in your browser is common html page.
ASP File Format. Active Server Page (an HTML file containing a Microsoft server-processed script) ASP is a file extension for the Active Server Page file format used by an HTML file containing a Microsoft server-processed script. An ASP filesâ scripts are processed on a Microsoft Web server before the page is sent to the user, usually tailoring a page for the user.