TCastleProcess and ExecuteCommand available with both FPC and Delphi, no more cryptic “Failed to execute  : 4551” when Windows “Smart App Control” blocks us

25 · Castle Engine · June 28, 2026, 5:02 a.m.
software development Refactoring Castle Engine FPC
Summary
This blog post discusses the refactoring of process execution code within the Castle Engine tools, aiming to improve functionality and eliminate issues with Windows' Smart App Control that previously resulted in confusing error messages. It emphasizes the potential for future enhancements in both the tools and the engine itself.
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