This note explains how to install the SLATEC Fortran 77 on-line documentation program sladoc. The version which is distributed here assumes a Unix environment. Those who wish to install sladoc on other environments will find that a few modifications are necessary. The routines in files slprep and subsid are compiled and linked to generate the SLPREP code. SLPREP uses the SLATEC library source (slatec_src) and the classification file (gams) to generate the four documentation files slacat, sladaf, slakwd and slatbl. Then compile and link the codes in files sladoc and subsid and call the executable sladoc. As structured, sladoc expects the four files slacat, sladaf, slakwd and slatbl to be in the current working directory. These four files can be installed elsewhere and the SLADOC source modified.