File list (Check if you may need any files):
Billing System
..............\Backup
..............\Billing System.PDM
..............\Billing System.vbp
..............\Billing System.vbp.bak
..............\Billing System.vbw
..............\Class
..............\.....\clsBlowfish.cls
..............\.....\clsHuffman.cls
..............\.....\clsPaging.cls
..............\.....\clsSQLSelectParser.cls
..............\Control
..............\.......\b8Controls4.oca
..............\.......\b8Controls4.ocx
..............\Data
..............\....\data.mdb
..............\Error.log
..............\event.log
..............\Forms
..............\.....\Form1.frm
..............\.....\Form1.frx
..............\.....\Form1.log
..............\.....\frmAbout.frm
..............\.....\frmAbout.frx
..............\.....\frmAdvancePayment.frm
..............\.....\frmAdvancePayment.frx
..............\.....\frmAdvancePayment.log
..............\.....\frmChangePassword.frm
..............\.....\frmChangePassword.frx
..............\.....\frmCollections.frm
..............\.....\frmCustomers.frm
..............\.....\frmCustomers.frx
..............\.....\frmCustomers.log
..............\.....\frmCustomersLedger.frm
..............\.....\frmCustomersLedger.frx
..............\.....\frmCustomersLedgerList.frm
..............\.....\frmCustomersList.frm
..............\.....\frmDBBackup.frm
..............\.....\frmDBBackup.frx
..............\.....\frmDisconnection.frm
..............\.....\frmDisconnection.frx
..............\.....\frmDisconnectionList.frm
..............\.....\frmDisconnectionList.log
..............\.....\frmErrMsg.frm
..............\.....\frmErrMsg.frx
..............\.....\frmExpenses.frm
..............\.....\frmExpenses.frx
..............\.....\frmExpensesList.frm
..............\.....\frmInstallationMode.frm
..............\.....\frmInstallationMode.frx
..............\.....\frmInstallationMode.log
..............\.....\frmInstallationModeList.frm
..............\.....\frmInventoryView.frm
..............\.....\frmLocate.frm
..............\.....\frmLocate.log
..............\.....\frmLogin.frm
..............\.....\frmLogin.frx
..............\.....\frmLogin.log
..............\.....\frmMenu.frm
..............\.....\frmMenu.frx
..............\.....\frmNewSubscription.frm
..............\.....\frmNewSubscription.frx
..............\.....\frmNewSubscription.log
..............\.....\frmPayBills.frm
..............\.....\frmPayBills.frx
..............\.....\frmPaymentHistory.frm
..............\.....\frmPaymentType.frm
..............\.....\frmPaymentType.frx
..............\.....\frmPaymentType.log
..............\.....\frmPaymentTypeList.frm
..............\.....\frmPostPayments.frm
..............\.....\frmPostPayments.frx
..............\.....\frmPostPayments.log
..............\.....\frmReceivables.frm
..............\.....\frmReceivedPayments.frm
..............\.....\frmReceivedPayments.frx
..............\.....\frmReceivedPayments.log
..............\.....\frmReceivedPaymentsList.frm
..............\.....\frmReceivePayments.frm
..............\.....\frmReceivePayments.frx
..............\.....\frmReceivePaymentsList.frm
..............\.....\frmReconnection.frm
..............\.....\frmReconnection.frx
..............\.....\frmReconnection.log
..............\.....\frmReconnectionList.frm
..............\.....\frmReports.frm
..............\.....\frmReports.log
..............\.....\frmResetKey.frm
..............\.....\frmResetKey.frx
..............\.....\frmResetKey.log
..............\.....\frmRestore.frm
..............\.....\frmRestore.frx
..............\.....\frmRPTBilling.frm
..............\.....\frmRPTBilling.frx
..............\.....\frmRPTCollSum.frm
..............\.....\frmRPTCollSum.frx
..............\.....\frmRPTCustomers.frm
..............\.....\frmRPTCustomers.frx
..............\.....\frmRPTDisburseSum.frm
..............\.....\frmRPTDisburseSum.frx