diff --git a/apps/desktopgui/build.xml b/apps/desktopgui/build.xml
index 0d697c185..9a2bb13fb 100644
--- a/apps/desktopgui/build.xml
+++ b/apps/desktopgui/build.xml
@@ -46,7 +46,8 @@
         <exec executable="sh" osfamily="mac" failifexecutionfails="true" >
             <arg value="./bundle-messages.sh" />
         </exec>
-        <exec executable="sh" osfamily="windows" failifexecutionfails="true" >
+		<!-- multi-lang is optional -->
+        <exec executable="sh" osfamily="windows" failifexecutionfails="false" >
             <arg value="./bundle-messages.sh" />
         </exec>
         <exec executable="mtn" outputproperty="workspace.changes" errorproperty="mtn.error2" failifexecutionfails="false" >
diff --git a/apps/i2psnark/java/build.xml b/apps/i2psnark/java/build.xml
index f2df5bc71..8b8c34060 100644
--- a/apps/i2psnark/java/build.xml
+++ b/apps/i2psnark/java/build.xml
@@ -99,7 +99,8 @@
         <exec executable="sh" osfamily="mac" failifexecutionfails="true" >
             <arg value="./bundle-messages.sh" />
         </exec>
-        <exec executable="sh" osfamily="windows" failifexecutionfails="true" >
+		<!-- multi-lang is optional -->
+        <exec executable="sh" osfamily="windows" failifexecutionfails="false" >
             <arg value="./bundle-messages.sh" />
         </exec>
     </target>
diff --git a/apps/i2ptunnel/java/build.xml b/apps/i2ptunnel/java/build.xml
index 55be71ea0..56ca6f30b 100644
--- a/apps/i2ptunnel/java/build.xml
+++ b/apps/i2ptunnel/java/build.xml
@@ -75,7 +75,8 @@
         <exec executable="sh" osfamily="mac" failifexecutionfails="true" >
             <arg value="./bundle-messages.sh" />
         </exec>
-        <exec executable="sh" osfamily="windows" failifexecutionfails="true" >
+		<!-- multi-lang is optional -->
+        <exec executable="sh" osfamily="windows" failifexecutionfails="false" >
             <arg value="./bundle-messages.sh" />
         </exec>
     </target>
diff --git a/apps/routerconsole/java/build.xml b/apps/routerconsole/java/build.xml
index adb625e47..346fe8ffe 100644
--- a/apps/routerconsole/java/build.xml
+++ b/apps/routerconsole/java/build.xml
@@ -102,7 +102,8 @@
         <exec executable="sh" osfamily="mac" failifexecutionfails="true" >
             <arg value="./bundle-messages.sh" />
         </exec>
-        <exec executable="sh" osfamily="windows" failifexecutionfails="true" >
+		<!-- multi-lang is optional -->
+        <exec executable="sh" osfamily="windows" failifexecutionfails="false" >
             <arg value="./bundle-messages.sh" />
         </exec>
         <!-- jar again to get the latest messages_*.class files -->
diff --git a/apps/susidns/src/build.xml b/apps/susidns/src/build.xml
index ea4dc5809..d2dc2f121 100644
--- a/apps/susidns/src/build.xml
+++ b/apps/susidns/src/build.xml
@@ -113,7 +113,8 @@
         <exec executable="sh" osfamily="mac" failifexecutionfails="true" >
             <arg value="./bundle-messages.sh" />
         </exec>
-        <exec executable="sh" osfamily="windows" failifexecutionfails="true" >
+		<!-- multi-lang is optional -->
+        <exec executable="sh" osfamily="windows" failifexecutionfails="false" >
             <arg value="./bundle-messages.sh" />
         </exec>
     </target>