1) Information on how EWIMH runs, installing it, and running it: ewimh.docs
2) The Fortran progam: ewimh_clip.f
3) The IRAF script to run it: ewimh_clip.cl
4) The file containing spectral features and wavelengths regions: ewimh.win
This version of ewimh.win is from the RR Lyrae paper. It uses variably-placed continuum bands for Ca II K, and measures it through a narrow (line 1) and wide (line 2) feature bands. It measures H-delta (line 3), H-gamma (line 4) and H-beta (line 5) using continuum bands with fixed positions).
Acknowledgements: this code is built on a core EW-fitting code written by Taft Armandroff in the mid-1980's and very kindly provided to me.