--- title: ZoomIt for Mac: How AI Ported a 20+ Year-Old Windows Tool description: Mark Russinovich reveals how he used AI-assisted coding to bring ZoomIt, his essential Sysinternals presentation tool, from Windows to macOS in just two days.... canonical: https://daily.dev/posts/zoomit-for-mac-how-ai-ported-a-20-year-old-windows-tool-q9ijatbee twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: ZoomIt for Mac: How AI Ported a 20+ Year-Old Windows Tool | daily.dev og:description: Mark Russinovich reveals how he used AI-assisted coding to bring ZoomIt, his essential Sysinternals presentation tool, from Windows to macOS in just two days.... og:url: https://daily.dev/posts/zoomit-for-mac-how-ai-ported-a-20-year-old-windows-tool-q9ijatbee og:image: https://api.daily.dev/og/posts/Q9IjaTBeE.png og:image:alt: ZoomIt for Mac: How AI Ported a 20+ Year-Old Windows Tool og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # ZoomIt for Mac: How AI Ported a 20+ Year-Old Windows Tool **[Microsoft Developer](https://daily.dev/sources/microsoftdeveloper)** · 13 min read · 0 upvotes · 0 comments ## Summary Mark Russinovich reveals how he used AI-assisted coding to bring ZoomIt, his essential Sysinternals presentation tool, from Windows to macOS in just two days. He traces ZoomIt's origins, explores its zooming, annotation, screen capture, recording, and demo typing capabilities, and explains how AI translated decades of Windows functionality to the Mac platform. The walkthrough culminates in a live demonstration of Demo Mirror, a new feature that lets presenters share a screen or selected window without leaving PowerPoint Presenter View. Watch to see how agentic coding transformed an ambitious cross-platform port into a working, open-source release. Explore ZoomIt for Mac on GitHub: https://github.com/microsoft/ZoomitForMac Download ZoomIt from Microsoft Sysinternals: https://learn.microsoft.com/en-us/sysinternals/downloads/zoomit Chapters: 0:00 The Story Behind ZoomIt 3:16 Why ZoomIt Came to Mac 4:21 Building ZoomIt with AI 7:03 ZoomIt for Mac Demo 9:16 Introducing Demo Mirror ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#microsoft](https://daily.dev/tags/microsoft), [#ai-coding](https://daily.dev/tags/ai-coding) [View this post on daily.dev](https://daily.dev/posts/zoomit-for-mac-how-ai-ported-a-20-year-old-windows-tool-q9ijatbee) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"ZoomIt for Mac: How AI Ported a 20+ Year-Old Windows Tool","url":"https://daily.dev/posts/zoomit-for-mac-how-ai-ported-a-20-year-old-windows-tool-q9ijatbee","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/zoomit-for-mac-how-ai-ported-a-20-year-old-windows-tool-q9ijatbee"},"datePublished":"2026-08-07T13:05:36.750Z","dateModified":"2026-08-07T13:35:40.415Z","description":"Mark Russinovich reveals how he used AI-assisted coding to bring ZoomIt, his essential Sysinternals presentation tool, from Windows to macOS in just two days....","image":"https://i.ytimg.com/vi/Pp3EgOodc40/sddefault.jpg","thumbnailUrl":"https://i.ytimg.com/vi/Pp3EgOodc40/sddefault.jpg","isAccessibleForFree":true,"articleSection":"Microsoft Developer","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Microsoft Developer","logo":"https://media.daily.dev/image/upload/s--xZzU3zUq--/f_auto/v1746714872/logos/microsoftdeveloper","url":"https://daily.dev/sources/microsoftdeveloper"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/zoomit-for-mac-how-ai-ported-a-20-year-old-windows-tool-q9ijatbee","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"microsoft,ai-coding","timeRequired":"PT13M","video":{"@type":"VideoObject","name":"ZoomIt for Mac: How AI Ported a 20+ Year-Old Windows Tool","description":"Mark Russinovich reveals how he used AI-assisted coding to bring ZoomIt, his essential Sysinternals presentation tool, from Windows to macOS in just two days....","thumbnailUrl":"https://i.ytimg.com/vi/Pp3EgOodc40/sddefault.jpg","uploadDate":"2026-08-07T13:05:36.750Z","duration":"PT13M","url":"https://api.daily.dev/r/Q9IjaTBeE","embedUrl":"https://www.youtube.com/embed/Pp3EgOodc40"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Microsoft Developer","item":"https://daily.dev/sources/microsoftdeveloper"},{"@type":"ListItem","position":3,"name":"ZoomIt for Mac: How AI Ported a 20+ Year-Old Windows Tool"}]} ```