Internet Explorer Shortcut Plugin Login Tool

I would like to create an internet explorer toolbar plugin. This plugin would help me login to certain sites on the fly. I would like the ability to have control. to do this we need the plugin to read the data from a txt file / .ini file . The plugin reads the file so it can create my shortcut links with the following fields. {{TITLE}}The shortcut caption {{/TITLE}} {{IMAGE}}optional instead of the shortcut caption{{/IMAGE}} {{URL}}. destination {{/URL}} {{USER}}username{{/USER}} {{PASSWORD}}password {{/PASSWORD}} Instead of me going to my bookmarks to open a website and then manually typing the username and password to login. I would want the toolbar to display my caption / image when i click the shortcut on the toolbar it will navigate to a website and takes the username and password field from the ini file and auto logins me in.