Hello everybody!

It is easy and possible to get Windows 11/64 to run 16 bit bbs doors on. If you follow this to the letter it works. I have done this to 3 different systems, and it's worked everytime. I have 70+ doors running on my BBS under Synchronet and Mystic, with out a problem. All the Sunrise doors, JNS, and a bunch of other ones too. Again follow to the letter.

Windows 11 Pro x64 (25H2) Running 16-bit DOS & Windows Programs

REQUIRED FIRST STEP (DO THIS BEFORE ANYTHING ELSE)

Follow this guide completely BEFORE installing NTVDMx64 or making any other changes:
https://peter0x44.github.io/posts/windows11-legacy-console/

This step forces Windows back to the correct console environment. If you skip this or do it later,
NTVDMx64 may fail with errors such as 4001h.

Remaining Setup Steps (in order)
1 Enable Developer Mode (Settings Privacy & Security For Developers)
2 Install NTVDMx64 AFTER completing Step 0
3 Disable Memory Integrity (Core Isolation)
4 Disable Hyper-V / Virtual Machine Platform (if enabled)
5 Reboot system

Testing
1 Run: edit.com
2 Run: command.com
3 Run: your DOS application (example: lord.exe)
4 Expected: no 4001h error

Troubleshooting
1 4001h error Step 0 was not completed first
2 Program closes instantly run manually in CMD
3 Works on one PC but not another console settings mismatch
4 No output ensure Windows Console Host is active
Important Notes
1 This setup is not officially supported
2 Windows updates may break compatibility
3 Keep backups of your system

Here's also a link to a PDF

https://drive.google.com/file/d/1ZPjnrf8CgITQ1dExloTKxZE-z0OR8vTr/view?usp=sharing

RickV


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Hello everybody!

It is easy and possible to get Windows 11/64 to run 16 bit bbs doors on. If you follow this to the letter it works. I have done this to 3 different systems, and it's worked everytime. I have 70+ doors running on my BBS under Synchronet and Mystic, with out a problem. All the Sunrise doors, JNS, and a bunch of other ones too. Again follow to the letter.

NTVDMx64 has some serious problems with 2 of my mini PCs and NETFOSS. The timing is way off and several doors just drop the user immediately, thinking their time is expired (iceedit is one major one) or their idle time is maxed out.

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Hello Martin!

24 May 26 05:36, you wrote to me:

Hello everybody!

It is easy and possible to get Windows 11/64 to run 16 bit bbs
doors on. If you follow this to the letter it works. I have done
this to 3 different systems, and it's worked everytime. I have
70+ doors running on my BBS under Synchronet and Mystic, with out
a problem. All the Sunrise doors, JNS, and a bunch of other ones
too. Again follow to the letter.

NTVDMx64 has some serious problems with 2 of my mini PCs and NETFOSS.
The timing is way off and several doors just drop the user
immediately, thinking their time is expired (iceedit is one major one)
or their idle time is maxed out.

I'm running on two mini PC's, one's a Intel 7, and the other is a Ryzen 7. Both have the latest update Windows 11/64 Pro. Yesterday I installed the ntvdmx64 on the Ryzen and followed those instruction to the letter ( that really matters, if you do something out of order it won't work). I've had it on the Intel for year's now.

You might try completely removing it and start over from the top. I've done that also ;').

RickV


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