Spectrum Emulators - ZX32
ZX32 for Windows is a free emulator. No payment is required to use it, and it does not expire either.
You can download it directly from this site by clicking here (1446500 bytes). The download is a self-installing .exe file.
It was previously featured on this site in the 'Easy Start Guide', but has been removed from that as most people don't have Windows 98 any more.
Note that this is an older program, and dates from before Windows XP was introduced. It is suited to computers with a lower specification, and will run on systems from a 486DX2/66 and Windows 95 upwards.
Despite being old, well over 3000 people downloaded it from this site during 2006.
Full details on ZX32 can't be found at the official website for the emulator, because it no longer exists.
It was http://www.geocities.com/SiliconValley/Bay/9932/ All deleted years ago.