.VBX File Extension
File TypeVisual Basic Custom Control
What is a VBX file?
Extension that expands the capabilities of Visual Basic scripts and programs; included with the Microsoft Visual Basic Control Development Kit (CDK); can be debugged using the Windbg debugger (WinDbg.exe) or CodeView for Windows (Cvw.exe).
VBX files may be referenced by Visual Basic programs, such as Microsoft Visual Basic and WScript.