However, this is the main problem with the RUNAS and SU executables. They require some type of plain-text password provision in order to function correctly. This violates pretty much any security rule.

Therefore, at least on this board, the recommended ways to perform actions under administrative privileges are to utilize kiXCrypt or the Task Scheduler and remote scripting. These approaches do not expose passwords in plain text. For more infor, see for example the FAQ Forum under Installing an Application as an Admin
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There are two types of vessels, submarines and targets.