I have some very old firmware builds I need to maintain, which were built using uvision3 on windows 7. As windows 7 support is due to end we are migrating to windows 10. Our modern builds using uvision4 are building and running fine. However, when I build the old projects under windows 10 using uvision3 the build succeeds, but won't run. Looking at the object code there are clear differences between the image built on windows7 and windows 10 using the same uvision3 project. Has anyone got uvision3 to perform under windows 10 as it did in windows 7? I have experimented with compatibility settings without success.
For legacy work we run DOS and XP under Virtual Box http://www.virtualbox.org/
Most AMD boxes for decades support virtualization, Intel's been a bit of a mixed bag, and most every case I've had to enable it in the BIOS when available.
For some tools that won't run in 64-bit mode (old tools, command line BIN2HEX, etc), we've recompiled/rewritten equivalent tools.
IT also maintains the legacy junk pile, in case we really have to go "back to the future" with software and legacy test cards, test stations, etc.