Installation ------------ There are 4 archives: IDA???C.ARJ - common for all version archive IDA???D.ARJ - MS DOS 16 bit version IDA???X.ARJ - MS DOS 32 bit version for DOS4GW (v1.97) IDA???O.ARJ - OS/2 version Simply unarchive the common files and one of the system-specific archive into one directory. For example: c: md \ida arj x ida???c.arj arj x ida???o.arj will install OS/2 version of IDA. Include directory with IDA files into your PATH (optional) If you need to have IDA for several systems, simply rename IDA.EXE (and other EXE files) so that they can coexist in one directory. That's all. Please inform me about all bugs, inconveniences in IDA. My address is in REGFORM.TXT Good disassembling, Ilfak Guilfanov.