So weird to ask and I am sorry for the this question. What is the IDE for Visual basic? I searched throughout the internet but I didnt find the nice information about visual basic and its IDE. 
What is the IDE for Visual basic?
visual basic;visual basic 6
It sounds like you're talking about classic Visual Basic (not VB.net), right?. There was no separate IDE, the program was called Visual Basic. See the Visual Basic Wikipedia page for a screenshot of the VB6 IDE 