Where to get Visual Basic 6.0 from?

[va!n]

I would like to compile old VB 5.0/6.0 sources under Windows 8.1 x64.
Where can i get/download Visual Basic 6.0 from and does it is free?

[Moroboshisan]

AFIK VB 6.0 is not available as a free tool from MS and is known to have serious issue under Win7 onwards...
there are some guides out there that give some advice and how-to to install VB6 in Win8.x (http://www.pcprofessionale.it/2014/08/01/come-installare-visual-basic-6-sui-windows-7-o-8-1/ this is the first result I got, in ITALIAN, but I think you will find many other resources out there searching the right kw in your preferred search engine).
Maybe you will try Visual Studio Express 2008 (free from MS) and give it a try... actually https://www.visualstudio.com/en-US/products/visual-studio-express-vs (since VS-Express2010 as I recall) require some kind of registration if you use them more than 30 days or so...
Are you sure there is no alternatives than VS6? you better go for a virtualized WindowsXP session with Visual Basic 6 to run onto...

EDIT: direct link for Visual Studio Express 2008 ISO Image
http://download.microsoft.com/download/8/B/5/8B5804AD-4990-40D0-A6AA-CE894CBBB3DC/VS2008ExpressENUX1397868.iso

keep in mind that you may need the SP1 (look for official download from MS) to upgrade the existing setup and some other resource as MSDN docs (there is another ISO to download).

[va!n]

Thanks for your fast reply. Can i open and compile VB5/VB6 projects with VS2008 too?
I have tried to load the old VB6 projects with VS2013 and it does not support old VB6 projects/sources.

[Moroboshisan]

you need to update your sources to use .NET to be able to successfully compile, you'll find guidelines in Visual Studio docs