Setting up QODBC to work with ADO
QODBC can be accessed from ADO. ADO can be used in Visual Basic (VB), Access, VBScripts, ASP,  C++, VB.NET, C# and any other language that supports COM components. 
 
Connection String
The most difficult part of using QODBC in programming is the connection string. The simplest form includes a reference to a DSN. A system DSN called "QuickBooks Data" is automatically created when QODBC is installed. "QuickBooks Data" will be used in all examples but can be substituted with any different DSN name you create.
 
Normally ADO pools connections. QODBC does not support connection pooling. It is recommended to tell ADO to not do connection pooling on any QODBC connection. This is done with OLE DB Services=-2.
 
Other options available on the connection string:

	DFQ = Path to company file or . (dot) to indicate currently open company file.
	OpenMode  = F (Follow Company), M (Multi-user), S (Single-user).
	DeveloperCode = This is for users of the QODBC v5 OEM version only. It is required to connect to the OEM licensing model. The Code is given to you when you purchase a QODBC v5 OEM licensing pack.
	ColumnNameLen = This is a number that specifies the maximum length a column name can be. Using this is required in some development environments. Its use will make the returned column names not match the normal defined schema.

Example of simple DSN:
    sConnectString = "DSN=Quickbooks Data;OLE DB Services=-2;"
 
Example of a DSNless connection string:
    sConnectString = "Driver={QODBC Driver for QuickBooks};DFQ=C:\Program Files\QODBC Driver for QuickBooks\sample04.qbw;OpenMode=M;OLE DB Services=-2;"
 
Example using current ADO syntax:
    sConnectString = "Provider=MSDASQL.1;Persist Security Info=False;Data Source=QuickBooks Data;OLE DB Services=-2;"

For QuickBooks reports, just use sp_report like any other "SELECT" statement, for example, save the following example as sp_report.vbs to a file.

'*****************************************
Const adOpenStatic = 3
Const adLockOptimistic = 3
 
Dim oConnection
Dim oRecordset
Dim sMsg
Dim sConnectString
Dim sSQL
 
sConnectString = "DSN=Quickbooks Data;OLE DB Services=-2;"
sSQL = "sp_report CustomerBalanceSummary show Text, Label, Amount_1 parameters DateMacro = 'ThisMonthToDate', SummarizeColumnsBy = 'TotalOnly'"

Set oConnection = CreateObject("ADODB.Connection")
Set oRecordset = CreateObject("ADODB.Recordset")
 
oConnection.Open sConnectString
oRecordset.Open sSQL, oConnection, adOpenStatic, adLockOptimistic
sMsg = "**********************" & Chr(10)
Do While (not oRecordset.EOF)
      sMsg = sMsg & oRecordSet.Fields("Text")
      sMsg = sMsg & " "  & oRecordSet.Fields("Label")
      sMsg = sMsg & " $" & oRecordSet.Fields("Amount_1") & Chr(10)
      oRecordset.MoveNext
Loop
sMsg = sMsg & "**********************" & Chr(10)
MsgBox sMsg
 
oRecordset.Close
Set oRecordset = Nothing
oConnection.Close
Set oConnection = Nothing
'*****************************************

Double click on it using Windows Explorer and you will get your Customer Balances: