The gethelp script allows iraf help to be viewed in a web browser by converting help files to html on the fly. The gasp package supports astrometry using the Guide Star Survey scans. The synthetic photometry package computes the predicted flux seen through the HST for a specified target and observing mode. The flux can either be output as a function of wavelength or integrated over a passband. The XC and mkpkg tasks are part of the iraf distribution and are used to compile source code in a portable manner.
Recent enhancements increase support for C code.
I support are mostly stsdas tasks under the tools package.