I still have an Xailer laptop with 5.03. I've been debugging and running an executable with no problems.
However, after removing Debug info, and trying to build the final executable, it will no longer link and create the exe.
The error is
C:/Xailer/hb32/Lib/Win/mingw/libhbrtl.a(gtsys.o):gtsys.c:(.text+0x1): undefined reference to `HB_FUN_HB_GT_WIN'