diff --git a/source/adios2/helper/adiosMpiHandshake.cpp b/source/adios2/helper/adiosMpiHandshake.cpp
index d4fd51b3d5..bc36a88dd9 100644
--- a/source/adios2/helper/adiosMpiHandshake.cpp
+++ b/source/adios2/helper/adiosMpiHandshake.cpp
@@ -21,6 +21,7 @@ namespace adios2
 namespace helper
 {
 
+#ifndef _WIN32
 void HandshakeComm(const std::string &filename, const char mode,
                    const int timeoutSeconds, MPI_Comm localComm,
                    MPI_Group &streamGroup, MPI_Group &writerGroup,
@@ -40,6 +41,7 @@ void HandshakeComm(const std::string &filename, const char mode,
     MPI_Comm_create_group(MPI_COMM_WORLD, writerGroup, 0, &writerComm);
     MPI_Comm_create_group(MPI_COMM_WORLD, readerGroup, 0, &readerComm);
 }
+#endif
 
 const std::vector<std::vector<int>> HandshakeRank(const std::string &filename,
                                                   const char mode,
diff --git a/source/adios2/helper/adiosMpiHandshake.h b/source/adios2/helper/adiosMpiHandshake.h
index 7a461fb84f..84e0ee6a38 100644
--- a/source/adios2/helper/adiosMpiHandshake.h
+++ b/source/adios2/helper/adiosMpiHandshake.h
@@ -53,11 +53,13 @@ const std::vector<std::vector<int>> HandshakeRank(const std::string &filename,
                                                   const int timeoutSeconds,
                                                   MPI_Comm localComm);
 
+#ifndef _WIN32
 void HandshakeComm(const std::string &filename, const char mode,
                    const int timeoutSeconds, MPI_Comm localComm,
                    MPI_Group &streamGroup, MPI_Group &writerGroup,
                    MPI_Group &readerGroup, MPI_Comm &streamComm,
                    MPI_Comm &writerComm, MPI_Comm &readerComm);
+#endif
 
 } // end namespace helper
 } // end namespace adios2