Internet Explorer 1.0 build 66

Internet Explorer 1.0 build 66 is a pre-release version of Internet Explorer 1.0 which is part of Microsoft Plus! 95 build 50. This is the earliest known and available build of Internet Explorer.

Quirks and observations

 * Proxy server support is present, but a user interface to change the setting is not implemented. Configuration must be done via Registry key
 * The icon placed on the Desktop is different to the actual icon shown when using Internet Explorer.