diff --git a/cmake/build_ace_tao.cmake b/cmake/build_ace_tao.cmake
index eb2bcedc8e3..c2f36750ea1 100644
--- a/cmake/build_ace_tao.cmake
+++ b/cmake/build_ace_tao.cmake
@@ -16,6 +16,18 @@ if(OPENDDS_JUST_BUILD_HOST_TOOLS)
   list(APPEND _OPENDDS_CONFIGURE_ACE_TAO_ARGS "--workspace-file=${ws}")
 endif()
 
+set(_build_cmd "${CMAKE_COMMAND}" -E env "ACE_ROOT=${OPENDDS_ACE}" "TAO_ROOT=${OPENDDS_TAO}")
+if(_OPENDDS_XERCES3_FOR_ACE)
+  list(APPEND _build_cmd "XERCESCROOT=${_OPENDDS_XERCES3_FOR_ACE}")
+
+  # Vcpkg debug libraries are in a non-standard place
+  set(_opendds_debug_vcpkg_xerces3_for_ace "${_OPENDDS_XERCES3_FOR_ACE}/debug/lib")
+  if(MSVC AND IS_DIRECTORY "${_opendds_debug_vcpkg_xerces3_for_ace}")
+    list(APPEND _OPENDDS_CONFIGURE_ACE_TAO_ARGS
+      --env "XERCESC_LIBDIR=${_opendds_debug_vcpkg_xerces3_for_ace}")
+  endif()
+endif()
+
 find_package(Perl REQUIRED)
 if(OPENDDS_STATIC)
   list(APPEND _OPENDDS_CONFIGURE_ACE_TAO_ARGS --static=1)
@@ -35,11 +47,6 @@ execute_process(
   COMMAND_ERROR_IS_FATAL ANY
 )
 
-set(_build_cmd "${CMAKE_COMMAND}" -E env "ACE_ROOT=${OPENDDS_ACE}" "TAO_ROOT=${OPENDDS_TAO}")
-if(_OPENDDS_XERCES3_FOR_ACE)
-  list(APPEND _build_cmd "XERCESCROOT=${_OPENDDS_XERCES3_FOR_ACE}")
-endif()
-
 if(_OPENDDS_MPC_TYPE STREQUAL gnuace)
   execute_process(
     COMMAND
diff --git a/cmake/configure_ace_tao.pl b/cmake/configure_ace_tao.pl
index 0add2d4e216..773f7508408 100755
--- a/cmake/configure_ace_tao.pl
+++ b/cmake/configure_ace_tao.pl
@@ -33,6 +33,8 @@
   push(@opts, "$key=s");
 }
 push(@opts, "macro-line=s@");
+my %env;
+push(@opts, "env=s%" => %env);
 if (!GetOptions(\%values, @opts)) {
   exit(1);
 }
@@ -113,6 +115,13 @@ sub read_file {
 $ENV{MPC_ROOT} = File::Spec->rel2abs($values{mpc});
 $ENV{ACE_ROOT} = File::Spec->rel2abs($values{ace});
 $ENV{TAO_ROOT} = File::Spec->rel2abs($values{tao});
+if ($values{'env'}) {
+  for my $name (keys(%{$values{'env'}})) {
+    my $value = $values{env}->{$name};
+    print("env: $name=$value\n");
+    $ENV{$name} = $value;
+  }
+}
 my $mwc_name = 'ACE_TAO_for_OpenDDS.mwc';
 my $mwc_src = $values{'workspace-file'} // "$FindBin::RealBin/../$mwc_name";
 my $mwc = "$values{src}/$mwc_name";
diff --git a/tools/dds/rtpsrelaylib/CMakeLists.txt b/tools/dds/rtpsrelaylib/CMakeLists.txt
index 9f3a1925bf6..2561ccc9c79 100644
--- a/tools/dds/rtpsrelaylib/CMakeLists.txt
+++ b/tools/dds/rtpsrelaylib/CMakeLists.txt
@@ -18,7 +18,7 @@ target_sources(OpenDDS_RtpsRelayLib
     Utility.h
     export.h
 )
-_opendds_library(OpenDDS_RtpsRelayLib)
+_opendds_library(OpenDDS_RtpsRelayLib MSVC_BIGOBJ)
 target_link_libraries(OpenDDS_RtpsRelayLib PUBLIC ${deps})
 
 opendds_target_sources(OpenDDS_RtpsRelayLib