Winstress calculates the increment of stresses in a linearly elastic half-space due to surface loads. Multiple rectangular loads, including negative loads, can model irregularly loaded areas. The system also accommodates multiple circular loaded areas. Infinitely long strip loads include uniform vertical and horizontal strip loads, vertical strip loads that increase linearly across the strip, vertical strip loads that are symmetrically triangular in section across the width of the strip, unsymmetric triangular strip loads, and embankment strip loads that rise linearly to a level value that continues across the width of the strip. Loads extending over half the surface of the half-space include a uniform load, a load rising linearly, and a terrace load that rises linearly to a level value that continues across the rest of the half-surface. In each case a small picture on the screen illustrates the configuration of the loading pattern and the meaning of the parameters defining it. The user can choose various options for stresses to be output. These include all components of stress at a point, values of individual components along a prescribed line, and others. Output can be printed or saved in an electronic file for later manipulation by a word processor. Stress Distribution in a Linearly Elastic Half-Space: • Essential first step in settlement analysis. • Solutions are used for loads on the surface of an isotropic, homogeneous linearly elastic half-space. • Superposition applies. • Real world does not conform very well to these assumptions, but the results work remarkably well for a great many practical cases. • This is because the distribution of increments of stress-especially vertical stress-does not differ much from the results of this theory as long as several conditions are met. • These include loads at or near the surface, stiffness increasing with depth, and loads small enough to preclude extensive plastic or viscous deformation. • Therefore, these solutions apply to a much wider range of conditions than would seem initially to be the case.