diff --git a/data/win32/fldigi.nsi b/data/win32/fldigi.nsi
index 081d6130..746a8f24 100644
--- a/data/win32/fldigi.nsi
+++ b/data/win32/fldigi.nsi
@@ -122,6 +122,7 @@ SectionEnd
         SectionIn RO
         SetOutPath $INSTDIR
         File "${FLDIGI_BINARY}"
+        File /nonfatal "${MINGWM_DLL}" "${PTW32_DLL}"
         !ifdef FLDIGI_LOCALE_DIR
 	    File /r "${FLDIGI_LOCALE_PATH}/${FLDIGI_LOCALE_DIR}"
         !endif
@@ -138,6 +139,9 @@ SectionEnd
         !endif
         SetOutPath $INSTDIR
         File "${FLARQ_BINARY}"
+!ifndef HAVE_FLDIGI
+        File /nonfatal "${MINGWM_DLL}" "${PTW32_DLL}"
+!endif
         StrCpy $WANT_FLARQ "true"
     SectionEnd
 !endif
@@ -217,6 +221,8 @@ Section "Uninstall"
     !ifdef HAVE_FLARQ
         Delete /REBOOTOK $INSTDIR\${FLARQ_BINARY}
     !endif
+    Delete /REBOOTOK $INSTDIR\${MINGWM_DLL}
+    Delete /REBOOTOK $INSTDIR\${PTW32_DLL}
     Delete /REBOOTOK $INSTDIR\uninstall.exe
 
     # Remove shortcuts, if any
diff --git a/scripts/mkhamlibstatic.sh b/scripts/mkhamlibstatic.sh
index ed9383fb..2f47aa73 100755
--- a/scripts/mkhamlibstatic.sh
+++ b/scripts/mkhamlibstatic.sh
@@ -13,7 +13,7 @@ if test "x$PKG_CONFIG" != "x"; then
 else
     hamlib_dir="${HAMLIB_LIBS#*-L}"
     hamlib_dir="${HAMLIB_LIBS%% *}"
-    if test "x$hamlib_dir" = "x"; then\
+    if test "x$hamlib_dir" = "x"; then
 	hamlib_dir=/usr/lib
     fi
 fi
diff --git a/scripts/mknsisinst.sh b/scripts/mknsisinst.sh
index 8487835b..962cc0e5 100755
--- a/scripts/mknsisinst.sh
+++ b/scripts/mknsisinst.sh
@@ -35,8 +35,6 @@ fldigi_bin=dl-fldigi.exe
 flarq_name=Flarq
 flarq_bin=flarq.exe
 
-def=
-
 if test "x$WANT_FLDIGI" != "xyes" && test "x$WANT_FLARQ" != "xyes"; then
     echo "E: refusing to create empty installer" >&2
     exit 1
@@ -50,6 +48,43 @@ if test "x$WANT_FLARQ" = "xyes"; then
     def="$def -DHAVE_FLARQ -DFLARQ_NAME=$flarq_name -DFLARQ_BINARY=$flarq_bin -DFLARQ_VERSION=$FLARQ_VERSION"
 fi
 
+# Look for pthreadGC2.dll and mingwm10.dll
+MINGWM_DLL=mingwm10.dll
+PTW32_DLL=pthreadGC2.dll
+if ! test -r "$build/$MINGWM_DLL" || ! test -r "$build/$PTW32_DLL"; then
+    IFS_saved="$IFS"
+    IFS=:
+    MINGWM_PATH=""
+    PTW32_PATH=""
+    for dir in $LIB_PATH; do
+	test "x$MINGWM_PATH" = "x" && test -r "$dir/$MINGWM_DLL" && MINGWM_PATH="$dir/$MINGWM_DLL"
+	test "x$PTW32_PATH" = "x" && test -r "$dir/$PTW32_DLL" && PTW32_PATH="$dir/$PTW32_DLL"
+    done
+    IFS="$IFS_saved"
+fi
+if ! test -r "$build/$MINGWM_DLL"; then
+    if test "x$MINGWM_PATH" != "x"; then
+	cp "$MINGWM_PATH" "$build"
+    elif test -r /usr/share/doc/mingw32-runtime/${MINGWM_DLL}.gz; then
+        # Debian and Ubuntu
+	gzip -dc /usr/share/doc/mingw32-runtime/${MINGWM_DLL}.gz > "$build/$MINGWM_DLL"
+    fi
+fi
+if ! test -r "$build/$PTW32_DLL"; then
+    if test "x$PTW32_PATH" != "x"; then
+	cp "$PTW32_PATH" "$build"
+    else
+    # look for dll in PTW32_LIBS
+	dir=$(echo $PTW32_LIBS | sed -r 's/.*-L([[:graph:]]+).*/\1/g')
+	lib=$(echo $PTW32_LIBS | sed -r 's/.*-l(pthreadGC[[:graph:]]+).*/\1/g')
+	lib="${lib}.dll"
+	if test -r "$dir/$lib"; then
+	    cp "$dir/$lib" "$build"
+	fi
+    fi
+fi
+def="$def -DMINGWM_DLL=$MINGWM_DLL -DPTW32_DLL=$PTW32_DLL"
+
 if test "x$USE_NLS" = "xyes" && make -C "$srcdir/../po" install prefix="$build" >/dev/null; then
     def="$def -DFLDIGI_LOCALE_PATH=$build/share -DFLDIGI_LOCALE_DIR=locale"
 fi