Int 76h is an interrupt generated by the IDE controller upon the completion of every disk operation. There are stealth viruses that use this interrupt for hiding their presence in the machine. In fact, these viruses dodge detection at the hardware level utilizing the published potentialities of the IDE controller. In order to detect such viruses, ADinf intercepts and handles this Int 76h itself. But such an independent handling may conflict with certain BIOS systems or special drivers of 32-bit access to IDE disks. In such cases, ADinf hangs up, displaying the message "Opening the disk".

In order to prevent ADinf from intercepting Int 76h, run ADinf with the "-76" option, as follows:

>C:\ADINF\adinf.exe -a -b -d -76 -@C:\ADINF\list -lC:\ADINF\

If, by such a command line, your system does not hang up any longer, please send the version number of your BIOS (the eight bytes at the address F000:FFF5) to support@ADinf.com for modifying the ADinf internal BIOS incompatibility table in an appropriate manner so that you may be able to run ADinf without the need for including this option in the command line.