monline

In Internet Explorer 8 a new feature called Frame Process Merging was introduced. This means that if you open new tabs/windows (even if you try to start a new IE instance using the Quick Launch icon) only a new subprocess is created for the already running IE instance. This new process will share lots of resources with the main IE process, eg. session cookies. This prevents you from logging in to any website (web application) multiple times (potentially with different credentials) at the same time which can be pretty annoying if you're a developer. The problem is easy to fix: use the -noframemerging command line option of IE to disable this feature. You can create a separate IE shortcut with this option or just add it to the Quick Launch icon.