I must have a IDE for VB6.
I can't use DotNet, because I cannot install a Framework on a computer, on which I will use my application and I know VB.Net, so I decide to use VB6 (I am open for other options).
Which IDE do you prefer for VB6?
Well, except Microsoft's Visual Basic 6.0, I don't know any.
By the way, Microsoft's support of VB6 is now over since 2008, you might consider using another language.