
Quote from emo on July 11, 2021, 1:50 amIn app -> properties-> access I have selected to disable crt alt del, but it does not work, is there any other method that you have tried that works? I have tried some modifying the registry but they have not worked for me. Anyone who knows what really works?
thank's
In app -> properties-> access I have selected to disable crt alt del, but it does not work, is there any other method that you have tried that works? I have tried some modifying the registry but they have not worked for me. Anyone who knows what really works?
thank's

Quote from HPW on July 11, 2021, 8:47 amHello,
After a look at the source this seems to be a MS mess with registry entrys and their suppoort by MS.
In this articel it is described how it should work:
https://techjourney.net/how-to-enable-or-disable-windows-task-manager/
But that seems to be not always to work. (Mostly on newer OS)
In the source I can find this commanet:
{ Allows Win NT, 2000 and XP to disable Ctrl+Alt+Del keys.
1 = disable, 0 = enable. Returns previous setting. }This was introduced for Neobook 4.1.1
When I try to do it by hand on my Win7 tablet regedit does not allow me to create the key.
Started with admin rights I can create the key, bit it did still not work.
This was offered in the past to build a kind of kisok mode for windows.
When you google "Windows kiosk mode" you get info about the real offer from MS for this.
Running a special user account let you run only one specific app.
So is it worth to further invest time to get this running? Is it possible?
Regards
Hans-Peter
Hello,
After a look at the source this seems to be a MS mess with registry entrys and their suppoort by MS.
In this articel it is described how it should work:
But that seems to be not always to work. (Mostly on newer OS)
In the source I can find this commanet:
{ Allows Win NT, 2000 and XP to disable Ctrl+Alt+Del keys.
1 = disable, 0 = enable. Returns previous setting. }
This was introduced for Neobook 4.1.1
When I try to do it by hand on my Win7 tablet regedit does not allow me to create the key.
Started with admin rights I can create the key, bit it did still not work.
This was offered in the past to build a kind of kisok mode for windows.
When you google "Windows kiosk mode" you get info about the real offer from MS for this.
Running a special user account let you run only one specific app.
So is it worth to further invest time to get this running? Is it possible?
Regards
Hans-Peter

Quote from HPW on July 11, 2021, 9:31 amHello,
I tracked it further down by building a VN debug version with some debug messageboxes.
The VN code contain a regkey check:
IF Reg.OpenKey( 'Software\Microsoft\Windows\CurrentVersion\Policies\System', TRUE ) THEN
..
And this fails on WIN 7 and WIN10.
On my XP system it does the regedit and the Taskmanager is locked abd a message like this appear: "Taskmanage is locked by the administrator"
So the question is: Are there other registry hacks which does the same for WIN7 + WIN10?
If possible a fix for VN could be made.
Regards
Hans-Peter
Hello,
I tracked it further down by building a VN debug version with some debug messageboxes.
The VN code contain a regkey check:
IF Reg.OpenKey( 'Software\Microsoft\Windows\CurrentVersion\Policies\System', TRUE ) THEN
..
And this fails on WIN 7 and WIN10.
On my XP system it does the regedit and the Taskmanager is locked abd a message like this appear: "Taskmanage is locked by the administrator"
So the question is: Are there other registry hacks which does the same for WIN7 + WIN10?
If possible a fix for VN could be made.
Regards
Hans-Peter

Quote from HPW on July 11, 2021, 9:59 amHello,
I also tried a reg-file:
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System]
"DisableTaskMgr"=dword:00000001But this fails on WIN 7 because you need admin rights.
So nothing what a normal app cound do from a user account.
Regards
Hans-Peter
Hello,
I also tried a reg-file:
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System]
"DisableTaskMgr"=dword:00000001
But this fails on WIN 7 because you need admin rights.
So nothing what a normal app cound do from a user account.
Regards
Hans-Peter

Quote from emo on July 11, 2021, 11:22 amHi Hans,
After trying various things in the registry, I have chosen to disable the CTRL keys, thus there is no possibility to access the task manager. It is not the best solution, but in my case, which is a custom shell for a museum, it works for me. Indeed there is the possibility of putting windows in kiosk mode, but you depend on specific versions of windows and that is why I do not use that option.
The registry version of DisableTaskMgr works, it doesn't show the task manager, but it does show the other options.Greetings and thank you!
Hi Hans,
After trying various things in the registry, I have chosen to disable the CTRL keys, thus there is no possibility to access the task manager. It is not the best solution, but in my case, which is a custom shell for a museum, it works for me. Indeed there is the possibility of putting windows in kiosk mode, but you depend on specific versions of windows and that is why I do not use that option.
The registry version of DisableTaskMgr works, it doesn't show the task manager, but it does show the other options.
Greetings and thank you!

Quote from luishp on July 11, 2021, 6:52 pm@emmanuel-fernandez please share the registry changes you have done to block the CTRL keys.
Thank you!
@emmanuel-fernandez please share the registry changes you have done to block the CTRL keys.
Thank you!

Quote from emo on July 11, 2021, 7:15 pmHi @luishp ,
I've actually disabled them by remapping the keys.
This is possible by adding in the registry:
HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Controls \ Keyboard Layout, adding a new key in binary format named "Scancode Map"
The information to understand how it works is quite complete in:
https://learnitstepbystep.blogspot.com/2019/11/windows-registry-keyboard-scancode-map.html
It can easily be done with programs like sharpKeys,
https://www.randyrants.com/2019/01/sharpkeys-3-9/
Where it even generates it in the registry.
I hope this information is useful to you ;-)
All the best!
Hi @luishp ,
I've actually disabled them by remapping the keys.
This is possible by adding in the registry:
HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Controls \ Keyboard Layout, adding a new key in binary format named "Scancode Map"
The information to understand how it works is quite complete in:
https://learnitstepbystep.blogspot.com/2019/11/windows-registry-keyboard-scancode-map.html
It can easily be done with programs like sharpKeys,
https://www.randyrants.com/2019/01/sharpkeys-3-9/
Where it even generates it in the registry.
I hope this information is useful to you ;-)
All the best!