2026-01-04 10:38 PM - last edited on 2026-01-08 3:17 AM by Andrew Neil
Hi ST support team,
I'm using STVD version 4.3.12, no matter create an empty project or open the existing project.
The MCU selection in Project Setting always empty. But the same STVD installation package works in some other computers.
My computer is 64-bit x64-based processor, running Windows 11 Enterprise Version 24H2.
I tried re-register dao360.dll in administrator CMD, there was a period when it could be resolved, but I'm not sure if it was due to Windows updates or some other reason. Now it's not working anymore.
CMD command:
Regsvr32 /u "C:\Program Files (x86)\Common Files\Microsoft Shared\DAO\DAO360.DLL"
Regsvr32 "C:\Program Files (x86)\Common Files\Microsoft Shared\DAO\DAO360.DLL"
2026-01-05 1:40 AM
Welcome @Allen_Huang, to the community!
Unfortunately, the software is no longer being developed because all resources are focused on the more modern 32-bit architecture STM32.
As you can see in the release note RN0013, section 1, STVD requires administrator rights to start. Problems may also occur in Windows 10 and Windows 11 if the path to the installation directory is too long and/or contains non-ASCII characters or spaces, so you should try installing to a short path such as C:\ST\STVD, for example.
Hope that helps?
Regards
/Peter
2026-01-06 1:54 AM
I installed sttoolset_pack42.exe in administrator mode to in path C:\ST\STVD, also run STVD in administrator, still the same. I also tried run STVD in compatibility mode of win7,win8 also failed.
Is there any other way?
I also tried copy other computer's file DAO350.DLL, dao360.dll, DAO2535.TLB, and that computer can select MCU correctly. But still failed with my computer.
2026-01-06 2:01 AM
Another thread about problems with STVD on more recent Windows versions here.
2026-01-06 2:15 AM - last edited on 2026-01-06 2:29 AM by Andrew Neil
2026-01-06 2:31 AM
I have no idea - just sharing for info.
Perhaps @RobK1 @DarekR or @Rombersoft could help?
2026-01-07 1:21 PM
2026-01-07 1:24 PM
2026-01-08 12:12 AM - last edited on 2026-01-08 3:18 AM by Andrew Neil
It's weird, sometimes even doing nothing my Win11 64-bit system can select MCU normally, but after restart computer back to empty issue. Since VirtualBox come with a cost, I'll skip that. I'm dropping STVD and moving to VS Code with the STM8 Debugger extension for debugging. Even it's not stable but at least a workaround way.
2026-01-08 1:44 AM
If you consider that resolves the issue, please mark the solution.
Or, @Rombersoft suggests a way to use the Arduino IDE here.