The IRIS AmaSeis program is for use with the AS-1 seismometer.
Fetch Version 2.0 Level 2008.06.03 here: AmaSeisSetup.exe.
If you have installed an earlier version, all you need fetch and extract is the executable which is in the self-extracting file: AmaSeisUpgrade.exe.
A set of auxiliary programs are available for uploading and downloading real-time data: AmaSeisAuxSetup.exe. (Updated July 30, 2008)
If the PC attached to the AS-1 is not attached to the Internet, you can download AmaSeisDisk1.exe and AmaSeisDisk2.exe and execute them to extract to two diskettes. These can be used to install on the AS-1 PC. Or you can download AmaSeisSetup.exe to a "thumb" drive and install from that.
Changes:
Also, added "Recently used seismogram files" to the Files menu item so that you can easily select a previous file. This only works for SAC files.