Category Archives: VB

COM interview questions

What is IUnknown? What methods are provided by IUnknown? It is a generally good idea to have an answer for this question if you claim you know COM in your resume. Otherwise, you may consider your interview failed at this point. IUnknown is the base interface of COM. All other interfaces must derive directly or [...]

Also posted in C++, Windows | 6 Comments

VB 6, COM, DCOM, Microsoft platform interview questions

3 main differences between flexgrid control and dbgrid control
ActiveX and Types of ActiveX Components in VB

Posted in VB | 14 Comments

Visual Basic

How do you register a component? Expected answer: Compiling the component, running REGSVR32 MyDLL.dll

Posted in VB | 36 Comments