BetaArchive Logo
Navigation Home Database Screenshots Gallery Image Uploader Server Info FTP Servers Wiki Forum RSS Feed Rules Please Donate
UP: 5d, 18h, 10m | CPU: 13% | MEM: 5148MB of 8191MB used
{The community for beta collectors}

Post new topic Reply to topic  [ 2 posts ] 
Author Message
 PostPost subject: [Tutorial] Software Poweroff in Windows NT 3.51        Posted: Tue Oct 29, 2019 8:22 pm 
Reply with quote
FTP Access
User avatar

Wed May 02, 2012 12:57 am


Favourite OS
Windows NT 3.x
For some reason I don't see this mentioned anywhere so I will post about it.

Normally Windows NT 3.51, like most Windows NT operating systems, don't support software poweroff and will just leave you hanging on a "It is now safe to turn off the computer" screen forever. The Windows NT 4.0 solution has been known about for a while, but turns out, there's another solution for Windows NT 3.51 too that no one ever mentions on the Internet.

As it turns out, Fujitsu actually bothered to write a HAL for Windows NT 3.51 that supports Software Poweroff for their Fujitsu FMV personal computer. This computer is sufficiently compatible to a regular PC that the HAL will work in any virtual machine (and presumably on real machines too).

What you need:

1. Download halfmv0.dll. I conveniently dropped this file on my Google Drive:
2. Start up Windows NT 3.51.
3. Replace the hal.dll that is present in the SYSTEM32 folder with the halfmv0.dll you just downloaded.
4. Reboot the system.
5. Add the appropriate registry key: open REGEDT32 (via File -> Run), navigate to the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon and look for the entry PowerdownAfterShutdown, which should be set to 0. Set it to 1 (it takes effect immediately).

If everything worked correctly the Shutdown dialog will have a new option "Shutdown and Power Off", which powers off the computer if selected.

Top  Profile
 PostPost subject: Re: [Tutorial] Software Poweroff in Windows NT 3.51        Posted: Thu Oct 31, 2019 7:40 pm 
Reply with quote
FTP Access

Thu Sep 27, 2018 5:41 pm


Favourite OS
Black Screen for me, then restarts

Top  Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

Who is online

Users browsing this forum: No registered users and 0 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  

All views expressed in these forums are those of the author and do not necessarily represent the views of the BetaArchive site owner.

Powered by phpBB® Forum Software © phpBB Group

Copyright © 2006-2020


Sitemap | XML | RSS