mov ax, 1608h ; Windows Initialization Complete Notification
int 2Fh ; multiplex interrupt
Windows Initialization Complete Notification (Interrupt 2Fh Function 1608h) notifies MS-DOS device drivers and TSRs that 386 enhanced-mode Windows has completed its initialization. Windows calls this function after it has installed and initialized all virtual devices allowing MS-DOS device drivers and TSRs that monitor Interrupt 2Fh the opportunity to identify instance data and perform other functions that are restricted to 386 enhanced-mode Windows initialization.
This function has no parameters.
This function has no return value.
When Windows calls this function, all virtual-device initialization is complete, so a device driver or TSR can call virtual-device entry points.
Windows does not necessarily call this function immediately after calling Windows Initialization Notification (Interrupt 2Fh Function 1605h). In particular, virtual devices may call Device Call Out (Interrupt 2Fh Function 1607h) or other functions prior to Windows calling this function. In such cases, any MS-DOS device driver or TSR responding to these calls is responsible for detecting and properly handling these calls.
Interrupt 2Fh Function 1605h Windows Initialization Notification