NetBox4FrameworkSelector
 

NetBox4 Framework Selector:
Select a .NET framework for NETBox 4;
Extract FrmSel.exe and NetBox4.exe to a directory
FrmSel.exe must be next to NetBox4.exe file;
Select a .svm file - a Turbo Studio file containing .NET framework (.svm button);
.svm files here https://sourceforge.net/projects/netbox-framework/files/TurboStudioNetFrameworks/
Click on "Run command" button;
Framework_4.0_x86.svm and Framework_4.5.2.svm won't run from some reasons.

Added fallowing .NET Frameworks (svm layer) on:
https://sourceforge.net/projects/netbox-framework/files/TurboStudioNetFrameworks/
version release date

4.0.3 Apr 9, 2024
3.5.4.202506 Aug 13, 2025
3.5.4 Mar 23, 2021
3.5.3 Mar 23, 2021
3.5.1 Mar 23, 2021
2.0 Jul 12, 2016

Edit: svm layer 4.0.3 working on Windows 10 64 bits.