Many new Windows features are included in dynamic-link libraries (DLLs) and can be used in Windows 3.0 and Windows 3.1. If you use the new features in your Windows 3.0 applications, you will need to redistribute the Windows DLLs and related files that support these features. The SDK includes the following redistributable files:
| File | Description |
| COMMDLG.DLL | Common dialog box library. The SDK also includes 10 other DLLs with the filename COMMDLG but with different extensions. These are international versions of the library. |
| DDEML.DLL | Dynamic Data Exchange Management Library |
| DIB.DRV | Device-independent bitmap driver |
| EXPAND.EXE | File Expansion Utility |
| LZEXPAND.DLL | Data decompression library |
| MCIPIONR.DRV | Multimedia control interface (MCI) driver for Pioneer Videodisc |
| OEMSETUP.INF | Installation file for MCIPIONR.DRV |
| OLECLI.DLL | Object linking and embedding client library |
| OLESVR.DLL | Object linking and embedding client library |
| PENWIN.DLL | Microsoft Windows for Pen Computing library |
| REGEDIT.EXE | Microsoft Windows Registration Editor |
| SHELL.DLL | Registration database and drag-drop support library |
| SMALLX.FON | Small bitmap fonts for use in print-preview applications. SMALLB.FON is for EGA resolution; SMALLE.FON is for VGA resolution; SMALLF.FON is for IBM 8514/a resolution. |
| TOOLHELP.DLL | Tool helper library |
| VER.DLL | File installation and version checking library |
| VTD.386 | Virtual timer device (supports tool helper library) |
| WINHELP.EXE | Microsoft Windows Help version 3.1 |
| WINHELP.HLP | Help for Windows Help version 3.1 |
| WINMEM32.DLL | Windows 32-bit memory-management library |
Note:
Many files associated with Windows-based setup programs (Windows Setup) are also redistributable but are not listed here. For more information about the redistributable libraries and files, please see the separate SDK license agreement.