At the site below there are details of what constitutes a monopoly. http://www.competition-commission.org.uk/inquiries/mono.htm Broadly speaking, the Act provides for two different kinds of monopoly situations: scale - when an individual or a single company, or companies within the same group, accounts for at least 25 per cent of the supply or acquisition of particular goods or services; and complex - when individuals or companies, which together account for at least 25 per cent of the supply or acquisition of particular goods or services, follow a course of conduct, by agreement or not, that prevents, restricts or distorts competition. Microsoft definitely fall into the category of scale with both Windows and Office. Therefore we might be better targeting this than the specific case of the NHS. The OFT gets the competition commission to investigate and it will not do it on the specific NHS-MS deal because of a technicality. However, if all the Open Source companies contacted the OFT and claimed that the MS monopoly on operating systems was damaging their business on the grounds that MS was engaged in anti-competitive practices and fixing prices well above market rates for similar technologies they will have to at least investigate. E-mail Darren.Eade@oft.gsi.gov.uk making it clear that the complaint is about MS's monopoly as defined by section 6 an 7 of the Fair Trading Act. Give an example of where you have lost out in the supply of a computer system, for example, because a customer, while complaining that the MS product was over-priced and inferior, thought they had to buy it for reasons of compatibility. Customers could also complain that while they would like to use alternative systems, the MS monopoly effectively prevents it (Just choose a reason, there are many). Copy this E-Mail to any lists, news groups etc that you think might alert more people to mail as the more complaints that are made, the more likely an investigation. Regards, -- IanL