Windows 7 & VB Classic Code: Any runtime issues?

Question

Microsoft has promised that VB6 code will continue to work on Windows 7, but has anyone noticed any gotchas specific to running VB6 code in the Windows 7 RC?

And for that matter, any issues with COM objects and ActiveX controls outside of VB6? I remember Microsoft saying that they'll ensure THEIR controls continue to work and end it at that; so I'm wondering what sort of under-the-hood change this entails...

We have a oodles of legacy controls which we need to migrate out--VB6 and C++--but it takes time to make it happen.

Thanks.

Answer 1

I've noticed one, but it's minor and probably not what you are looking for.

If you change the DPI to something other than 96, the checkbox control looks really odd, like someone cut it and it's showing you its guts. The same applies to the checkbox on the ListBox/ListView.

Answer 2

I have not encountered anything in terms of VB6 issues that is new since Vista.

Of course if your programs try to parasitize users' email profiles via MAPI, CDO, or something be aware that Win7 has no Outlook Express or Windows Mail at all.

DPI issues exist in Both Vista and Win7, and the cure is the same: you need to declare DPI awareness via an application manifest (and of course code for varying DPI when sizing and placing controls, fonts, etc.).