Freeserve's Anytime package – launched on Tuesday – excludes support for Macintosh computers.

Anytime provides unmetered 24-hour Internet access, for a monthly charge of £12.99. As well as being Mac-hostile, it doesn't work with Netscape browser on any platform.

On its Web site, Freeserve – the UK’s first free Internet service provider – says support for Macs "is being updated". However, it doesn't reveal when the service will be available for Macs. Neither does it explain why the decision was taken not to support Macs.

A Freeserve insider said: "It was decided that we aren't taking the Mac platform on."

On the Netscape incompatibility issue, the source added: "We're using an ad display feature unique to Internet Explorer, making the use of Netscape impossible."