Add database query feature to a closed source win32 billing program

We have a billing program and we'd like to query it's database for specific data to be used in POS program. Unforutnately, it does not have API. And the devs seem to have stopped developing it. The database is locked with password when opened with sqlite. These are the example of the database files that are locked. [login to view URL] This is the complete installer of the billing program [login to view URL] The billing actually can generate manual report, below is an example : Detail Staff Staff Total Jam Kerja Pendapatan Refund Penggunaan Admin ADMIN 0m 0 0 0m OP1 7j 45m 62,000 0 0m OP2 7j 55m 106,500 0 0m OP3 8j 19m 131,500 0 0m Detail Shift Staff Jam Mulai Jam Selesai Total Jam Kerja Pendapatan OP3 18-12-2017 06:00:00 18-12-2017 06:30:32 31m 0 OP1 18-12-2017 06:30:32 18-12-2017 14:15:37 7j 45m 0 OP2 18-12-2017 14:15:37 18-12-2017 22:10:29 7j 55m 0 OP3 18-12-2017 22:10:29 19-12-2017 05:59:00 7j 49m 131,500 Tidak ada staff 18-12-2017 06:00:00 19-12-2017 05:59:00 23j 59m 168,500 Above is the revenue report that can be generated manually by the billing, The data that we need to query are 1. Jam Mulai 2. Jam Selesai 3. Staff 4. Pendapatan When querying the database, it must not conflict with the billing's database usage. PM for more info. regards.