Pastey EUC not working with Windows10 since september 2017 release ?

since years,I used to compile with Euc on Eu4,05 and watcom on three different Windows10 Pc
suddenly near end of 2017 none of those PCs could compile anymore - I thought it was a problem with Watcom
so I tried GCC and TDM-GCC-32 and for all three compilers I got the following :
Microsoft Windows [version 10.0.16299.431]
(c) 2017 Microsoft Corporation. Tous droits r?serv?s.
C:\WINDOWS\system32>euc -gcc c:\euphoria\demo\color.ex
Build directory: build-538891\
Translating code, pass: 1 2 3 4 5 6 7 8 9 10 11  generating
Compiling with GCC
Compiling   1% init-.c <---------- And it stop here !
C:\WINDOWS\system32>
All three compilers have been tested and are ok to compile a file.c

So I tried the same with Eu4,1 and I get with GCC :  ( quite the same with TDM-GCC-32)
Microsoft Windows [version 10.0.16299.431]
(c) 2017 Microsoft Corporation. Tous droits r?serv?s.
C:\WINDOWS\system32>cd c:\euphoria\demo\
c:\Euphoria\demo>euc -gcc color.ex
Build directory: build-752310\
Translating code, pass: 1 2 3 4 5 6 7 8 9 10 11  generating
Compiling with GCC
Compiling   2% init-.c
Compiling  10% color.c
Compiling  15% main-.c
Compiling  20% graphics.c
Compiling  25% types.c
Compiling  30% console.c
Compiling  35% get.c
Compiling  41% machine.c
Compiling  46% memory.c
Compiling  51% dll.c
Compiling  56% text.c
Compiling  61% convert.c
Compiling  66% search.c
Compiling  71% filesys.c
Compiling  76% datetime.c
Compiling  82% sequence.c
Compiling  87% sort.c
Compiling  92% scinot.c
Compiling  97% eumem.c
Linking 100% ..\color.exe
c:/Euphoria/bin/eu.a(be_machine.o):be_machine.c:(.text+0x94) : r?f?rence ind?finie vers « __ms_vsnprintf »
c:/Euphoria/bin/eu.a(be_w.o):be_w.c:(.text+0xbc3) : r?f?rence ind?finie vers « __ms_vsnprintf »
c:/Euphoria/bin/eu.a(be_w.o):be_w.c:(.text+0xbe4) : r?f?rence ind?finie vers « __ms_vsnprintf »
c:/Euphoria/bin/eu.a(be_runtime.o):be_runtime.c:(.text+0x1d0) : r?f?rence ind?finie vers « __ms_vsnprintf »
c:/Euphoria/bin/eu.a(be_callc.o):be_callc.c:(.text.unlikely+0x24) : r?f?rence ind?finie vers « __ms_vsnprintf »
collect2.exe: error: ld returned 1 exit status
Unable to link c:\Euphoria\demo\color.exe
Status: 1 Command: gcc -o c:/Euphoria/demo/color.exe  init-.o color.o main-.o graphics.o types.o console.o get.o machine
.o memory.o dll.o text.o convert.o search.o filesys.o datetime.o sequence.o sort.o scinot.o eumem.o   c:/Euphoria/bin/eu
.a -m32
c:\Euphoria\demo>

So i need some help ! Thanks for your insights