Dear Hakan,
If we include the source code of function Now() inside FWH, then when building a PRG that uses such function we get this:
LINK : warning LNK4217: symbol '___acrt_iob_func' defined in 'libucrt.lib(_file.obj)' is imported by 'FiveHC32.lib(NOW.obj)' in function '_HB_FUN_NOW'
LINK : warning LNK4217: symbol '___stdio_common_vfprintf' defined in 'libucrt.lib(output.obj)' is imported by 'FiveHC32.lib(NOW.obj)' in function '__vfprintf_l'
LINK : warning LNK4217: symbol '___stdio_common_vsprintf' defined in 'libucrt.lib(output.obj)' is imported by 'FiveHC32.lib(NOW.obj)' in function '_snprintf'
LINK : warning LNK4217: symbol '_exit' defined in 'libucrt.lib(exit.obj)' is imported by 'FiveHC32.lib(NOW.obj)' in function '_HB_FUN_NOW'
LINK : warning LNK4217: symbol '__time64' defined in 'libucrt.lib(time.obj)' is imported by 'FiveHC32.lib(NOW.obj)' in function '_HB_FUN_NOW'
FiveHC32.lib(NOW.obj) : error LNK2019: unresolved external symbol __imp__perror referenced in function _HB_FUN_NOW
FiveHC32.lib(NOW.obj) : error LNK2019: unresolved external symbol __imp___ctime64_s referenced in function _HB_FUN_NOW
horizon.exe : fatal error LNK1120: 2 unresolved externals
Still we don't know how to solve this. So in the meantime, you have to include function Now() in one of your PRGs