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Adobe Flash 9 on Windows 95 and NT 3.5
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Author:  Heathercat123 [ 21 Jul 2026, 14:27 ]
Post subject:  Adobe Flash 9 on Windows 95 and NT 3.5
Here's a little project that I "made" last year and then mostly abandoned, based on MattKC's dotnet9x. It allows for most of Adobe Flash 9 and partially 10 to run on Windows 95 and NT 3.5 using wrappers, whereas the official minimum for FP9 is Windows 98 and 2000. Downloads and src are on Codeberg

Known problems:
- SWFs compiled for Adobe Flash 10 don't run at all
- flash.net.SharedObject, used for storing local data, doesn't work since I dunno how to get a directory handle on old win32
- Browsing for SWFs doesn't work
Keep in mind that I'm quite new to C

[ attachment ]
On 95.png (23.85 KiB) Viewed 1286 times
It also works on stock 95 RTM
[ attachment ]
On NT 3.5.png (23.75 KiB) Viewed 1286 times
Recently, I also got it to launch on NT 3.1, though it cannot draw anything to the screen yet:
[ attachment ]
On NT 3.1.png (11.95 KiB) Viewed 1286 times
The DLL Initialization Failed is because my wrapper tried to load WinG, which requires at least NT 3.5 or win32s.
I've neglected to publishing the code for that port, though I plan to do it eventually in a branch.

On Windows 3.1 with win32s, it just doesn't launch for some reason.

Edit: Added repo/download link, oopsies!
Author:  Duke [ 21 Jul 2026, 18:32 ]
Post subject:  Adobe Flash 9 on Windows 95 and NT 3.5
Heathercat123 wrote: *  21 Jul 2026, 14:27
Here's a little project that I "made" last year and then mostly abandoned, based on MattKC's dotnet9x. It allows for most of Adobe Flash 9 and partially 10 to run on Windows 95 and NT 3.5 using wrappers, whereas the official minimum for FP9 is Windows 98 and 2000. Downloads and src are on Codeberg
Nice work, well done! :thumbup:

Heathercat123 wrote: *  21 Jul 2026, 14:27
On Windows 3.1 with win32s, it just doesn't launch for some reason.
On my Windows 3.11 VM with Win32s and WinG I'm getting a Win32s - Error: Invalid format.
And then an Unexpected error 21.

But don't bother with Windows 3.1 ;)
Author:  Heathercat123 [ 21 Jul 2026, 18:42 ]
Post subject:  Adobe Flash 9 on Windows 95 and NT 3.5
Duke wrote: *  21 Jul 2026, 18:32
On my Windows 3.11 VM with Win32s and WinG I'm getting a Win32s - Error: Invalid format.
And then an Unexpected error 21.

Yeah, I haven't updated the repo yet, sorry!

Edit: It's published now: https://codeberg.org/heathercat123/flash95/releases/tag/threepointone
Author:  Duke [ 21 Jul 2026, 19:48 ]
Post subject:  Adobe Flash 9 on Windows 95 and NT 3.5
I wasn't clear enough, I've tried it on Windows 3.11, as you mentioned Windows 3.1 with Win32s, but not on NT 3.1 :oops:

So no worries and don't bother with the old Windows 3.1 ;)
Author:  wuggy [ 22 Jul 2026, 23:50 ]
Post subject:  Adobe Flash 9 on Windows 95 and NT 3.5
How the hell did you manage to do that?
Author:  Heathercat123 [ 25 Jul 2026, 16:58 ]
Post subject:  Adobe Flash 9 on Windows 95 and NT 3.5
wuggy wrote: *  22 Jul 2026, 23:50
How the hell did you manage to do that?
It kind of just worked after adding a few stubs to dotnet9x.
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