The role of the solver execution script in HyperStudy is to provide the name and location of the file which HST uses to execute the model. There is no unique method to the construction of these files. The scripts can be constructed in any language, and its contents can be as simple as a single line or a detailed set of commands. This generality is by design so that HyperStudy is flexible enough to be wrapped around any non-interactive process. The purpose of this document is to frame the role of the solver script within HyperStudy, provide some general tips on common script structures, and illustrate some simple examples.