Apart from the fact that its presentation is outdated and frankly not very ergonomic, the operation of Harrap's Unabridged Pro FR / ANG-ANG / FR on Windows XP 32 Bit is correct-without-despite some inexplicable crashes ... We can do with it! Under Seven 64 Bits, operation is completely anarchic! Some say even here not having managed to install ... This has been reported many times, but this section remains unchanged in the product descriptions on the "shops" Amazon as running Windows 7 32 / 64Bitset same W8 under 32 / 64Bit! We will not speak of deception and use words that annoy, but simply a flagrant lack of information and the use of an uncontrolled copy and paste easy. So you have that potential future buyers / stakeholders are aware of a realistic and pragmatic way. This software is not recommended despite its wealth outcome of Harrap's dictionary well known and that's a shame. A star only for its almost correct operation on XP!