"Immediate form" programs to estimate sample size and power when the standard deviation of costs and the standard deviation of effects are common for two treatment groups (cess1i and cepow1i) and to estimate sample size and power when the standard deviation of costs and the standard deviation of effects differ between two treatment groups (cess2i and cepow2i).  The program called ssizeprgdoc provides brief documentation for the programs.  Also included is a log file that demonstrates use of the 4 programs.