If a program that you want to start uses file systems (via the VFS component), the following is required before starting the program:
Use the menu to open the extension settings window: File → Preferences → Settings, then select Extensions → KasperskyOS.
Set the client:kl.VfsSdCardFs value for the VFS_FILESYSTEM_BACKEND environment variable in the Application Environment Variables parameter.
To start a program in a basic solution image:
Open the program project directory in Visual Studio Code.
Make sure that the project was correctly identified based on the appearance of additional extension buttons in the lower panel. If the buttons do not appear, manually activate the solution by running the command KOS: Activate extension in this directory.