| Overview | Tcl Windows API V1.1 overview |
| Installation | Installation requirements and instructions |
| Win32 raw API | Direct access to the Win32 API |
| Window management | Commands related to management of windows |
| Desktops and Window stations | Commands related to desktops and window stations |
| COM | Commands for accessing COM servers |
| Windows Shell | Windows shell commands |
| Keyboard and mouse input | Simulation of user input and support for system-wide hotkeys |
| Sound | Basic sound functions |
| Clipboard | Commands related to accessing the clipboard |
| System | Operating system and machine configuration and control |
| Processes, threads and DLLs | Commands related to processes, threads and dynamic link libraries |
| Handles | Commands for managing operating system handles |
| Services | Commands for configuring and monitoring Windows services |
| Network configuration | Commands related to network configuration |
| Files, Disks and Volumes | Commands related to files, disks and volumes |
| Network shares and Lan Manager | Commands related to management of network shares and Lan Manager sessions |
| Users and Groups | Commands related to user and group accounts |
| Security and access control | Commands related to authentication and access control |
| Event log | Commands relating to reading and writing the Windows event log |
| Windows INI file | Commands for accessing Windows INI files |
| Console | Commands related to Windows consoles |
| Task Scheduler | Commands related to the Windows task scheduler |
| Internationalization | Commands related to internationalization |
| Printers | Printer management |
| Error generation and handling | TWAPI error generation and handling |
| Miscellaneous | Various TWAPI ancillary commands |
| Examples | Tcl Windows API usage examples |
| Version History | Tcl Windows API extension version history |