Symptoms
FoxPro indexes that contain the function EMPTY or ISBLANK will not berecognized in Visual Basic. Indexes with this function are recognizedby Visual Basic 4.0. The following error will be generated under NT and Windows 2000:

An application error has occurred
and an application error log is being generated.
VB5.exe
Exception Access Violation (0xc0000005),Address ………Visual Basic is terminated by this error.
In Windows 95 and Windows 98, no error is returned because the index is notseen.
Resolution
Compare field to ” ” instead of using EMPTY. The same results are achieved.