PowerShell Error Handling and Retry Design — From the try/catch Trap to Exit Codes and Retry Best Practices (archived 2026-07-27)

A practical rundown of PowerShell error handling: the difference between terminating and non-terminating errors, the -ErrorAction Stop pattern for the try/catch trap, judging success or failure with $LASTEXITCODE, exit code design, and retrying with exponential backoff. Archived version of https://comcomponent.com/en/blog/powershell-error-handling-retry-design/, as published on 2026-07-27. The live article is maintained and may change after this date. First published 2026-07-18.