To understand the specific "32-bit" version of IE9, one must understand the Windows environment in which it operated.
She kept one Windows 7 VM with IE9 32-bit alive for years, long after Microsoft stopped supporting it. A museum piece, but a working one. internet explorer 9 32 bit
Now, the oddest detail: the user agent string. If you were on 32-bit IE9, it reported: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0) No “Win64” flag. On 64-bit IE9, it added Win64; x64 . So websites saw the 32-bit version as the “normal” one. Developers often tested only that, and 64-bit IE9 became a ghost. To understand the specific "32-bit" version of IE9,
Microsoft shifted toward a "content-first" design philosophy with IE9: Now, the oddest detail: the user agent string
Here’s a short, interesting story-like dive into — a browser that arrived like a paradox, loved by developers but ignored by the world.
The Legacy of Internet Explorer 9 (32-bit): Speed, Standards, and Survival
But not just any IE9. The on 64-bit Windows.