Win64 placeholder targets. This is merely naming suggestion. As we know

Win64 comes in two flavors, IA-64/Itanium and AMD64/Opteron. The
suggestion is to refer to former as WIN64I and latter - WIN64A

Configure

@@ -463,9 +463,11 @@ my %table=(
 #
 "OS390-Unix","c89.sh:-O -DB_ENDIAN -DCHARSET_EBCDIC -DNO_SYS_PARAM_H  -D_ALL_SOURCE::(unknown):::THIRTY_TWO_BIT DES_PTR DES_UNROLL MD2_CHAR RC4_INDEX RC4_CHAR BF_PTR:::",
 
-# Windows NT, Microsoft Visual C++ 4.0
+# Win64 targets, WIN64I denotes IA-64 and WIN64A - AMD64
+"VC-WIN64I","cl::::WIN64I::SIXTY_FOUR_BIT EXPORT_VAR_AS_FN:${no_asm}:win32",
+"VC-WIN64A","cl::::WIN64A::SIXTY_FOUR_BIT EXPORT_VAR_AS_FN:${no_asm}:win32",
 
-"VC-NT","cl::::WINNT::BN_LLONG RC4_INDEX EXPORT_VAR_AS_FN ${x86_gcc_opts}:${no_asm}:win32",
+# Visual C targets
 "VC-CE","cl::::WINCE::BN_LLONG RC4_INDEX EXPORT_VAR_AS_FN ${x86_gcc_opts}:${no_asm}:win32",
 "VC-WIN32","cl::::WIN32::BN_LLONG RC4_INDEX EXPORT_VAR_AS_FN ${x86_gcc_opts}:${no_asm}:win32",
 "VC-WIN16","cl:::(unknown):WIN16::MD2_CHAR DES_UNROLL DES_PTR RC4_INDEX THIRTY_TWO_BIT:::",
@@ -533,7 +535,8 @@ my %table=(
 
 );
 
-my @MK1MF_Builds=qw(VC-NT VC-CE VC-WIN32 VC-WIN16 VC-W31-16 VC-W31-32 VC-MSDOS
+my @MK1MF_Builds=qw(VC-WIN64I VC-WIN64A VC-CE VC-WIN32
+	VC-WIN16 VC-W31-16 VC-W31-32 VC-MSDOS
 	BC-32 BC-16 OS2-EMX netware-clib netware-libc);
 
 my $idx = 0;

TABLE

@@ -936,32 +936,6 @@ $shared_extension =
 $ranlib       = 
 $arflags      = 
 
-*** VC-NT
-$cc           = cl
-$cflags       = 
-$unistd       = 
-$thread_cflag = 
-$sys_id       = WINNT
-$lflags       = 
-$bn_ops       = BN_LLONG RC4_INDEX EXPORT_VAR_AS_FN RC4_INDEX MD2_INT
-$bn_obj       = 
-$des_obj      = 
-$aes_obj      = 
-$bf_obj       = 
-$md5_obj      = 
-$sha1_obj     = 
-$cast_obj     = 
-$rc4_obj      = 
-$rmd160_obj   = 
-$rc5_obj      = 
-$dso_scheme   = win32
-$shared_target= 
-$shared_cflag = 
-$shared_ldflag = 
-$shared_extension = 
-$ranlib       = 
-$arflags      = 
-
 *** VC-W31-16
 $cc           = cl
 $cflags       = 
@@ -1066,6 +1040,58 @@ $shared_extension =
 $ranlib       = 
 $arflags      = 
 
+*** VC-WIN64A
+$cc           = cl
+$cflags       = 
+$unistd       = 
+$thread_cflag = 
+$sys_id       = WIN64A
+$lflags       = 
+$bn_ops       = SIXTY_FOUR_BIT EXPORT_VAR_AS_FN
+$bn_obj       = 
+$des_obj      = 
+$aes_obj      = 
+$bf_obj       = 
+$md5_obj      = 
+$sha1_obj     = 
+$cast_obj     = 
+$rc4_obj      = 
+$rmd160_obj   = 
+$rc5_obj      = 
+$dso_scheme   = win32
+$shared_target= 
+$shared_cflag = 
+$shared_ldflag = 
+$shared_extension = 
+$ranlib       = 
+$arflags      = 
+
+*** VC-WIN64I
+$cc           = cl
+$cflags       = 
+$unistd       = 
+$thread_cflag = 
+$sys_id       = WIN64I
+$lflags       = 
+$bn_ops       = SIXTY_FOUR_BIT EXPORT_VAR_AS_FN
+$bn_obj       = 
+$des_obj      = 
+$aes_obj      = 
+$bf_obj       = 
+$md5_obj      = 
+$sha1_obj     = 
+$cast_obj     = 
+$rc4_obj      = 
+$rmd160_obj   = 
+$rc5_obj      = 
+$dso_scheme   = win32
+$shared_target= 
+$shared_cflag = 
+$shared_ldflag = 
+$shared_extension = 
+$ranlib       = 
+$arflags      = 
+
 *** aix-cc
 $cc           = cc
 $cflags       = -q32 -O -DB_ENDIAN -qmaxmem=16384