Problem: Today when attempting to login to the administrator (administration) portion of one of my customers Joomla websites, I received an “Invalid Session” error. Internet Explorer only shows the error in the URL and just redirects you back to the login page: https://mikefrobbins.com/administrator/index.php?mosmsg=Invalid Session Google Chrome actually shows an “Invalid Session” error on the login page: Solution: You have a session directory specified in your php.ini file that does not exist: session.
I will be diving into the dark side with this blog since I prefer working with Microsoft based technolgies such as SharePoint and ASP.NET. Each time I work with PHP and MySQL, it seems like it takes a little Voodoo to make them work. This blog is the bare minimum configuration to get Joomla working on a Windows 2008 R2 Server with Apache, PHP, and a remote MySQL server. First, download the latest version of Apache HTTP Server win32 binary without crypto MSI installer, PHP VC6 thread safe zip file, MySQL Community Server essential 64 bit MSI installer, and Joomla.