# Features not supported for D3 Windows

The following features have *not* been implemented on D3 Windows:

- Bridges

- Incremental saves and restores on FSI files

- Running an execute from a callx subroutine

- VB rule modules and callx subroutines do not support access to OSFI dataNote: DOS files can be accessed using standard and user-supplied % function calls. VB rule modules and callx subroutines can use the execute command to retrieve OSFI data via the VME. FSI to FSI is supported using Super Q-Pointers.

- Index saves and restores

- The call command from Access (only non-Flashed code can be called from access)

- ODBC in the VME (read only)

- Many create-index and verify-index options are not supported in the FSI

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Source: https://d3codex.com/introduction/features-not-supported-for-d3-windows/ - part of the D3Codex reference.