diff --git a/datastore_server/build/build.xml b/datastore_server/build/build.xml
index c097deaf1f0fcbbde744bc4ee064f15b07f67bd2..c37921af1082ce190ba98e35338abd900c2d1b2c 100644
--- a/datastore_server/build/build.xml
+++ b/datastore_server/build/build.xml
@@ -124,6 +124,7 @@
     <copy file="${lib}/csv/csv.jar" todir="${dist.datastore_server.lib}" />
     <copy file="${lib}/jfreechart/jcommon-1.0.16.jar" todir="${dist.datastore_server.lib}" />
     <copy file="${lib}/jfreechart/jfreechart-1.0.13.jar" todir="${dist.datastore_server.lib}" />
+    <copy file="${lib}/jython/jython-lib" todir="${dist.datastore_server.lib}" />  	
   </target>
 
   <!-- parameters: 
diff --git a/datastore_server/resource/eclipse/Data Store Server.launch b/datastore_server/resource/eclipse/Data Store Server.launch
index ff93a24f1f4d87e191f1df289d465325c4569c1d..d916e97782dd832fab366f8bf693e4aaa041c6d1 100644
--- a/datastore_server/resource/eclipse/Data Store Server.launch	
+++ b/datastore_server/resource/eclipse/Data Store Server.launch	
@@ -1,13 +1,13 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<launchConfiguration type="org.eclipse.jdt.launching.localJavaApplication">
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
-<listEntry value="/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/DataStoreServer.java"/>
-</listAttribute>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
-<listEntry value="1"/>
-</listAttribute>
-<booleanAttribute key="org.eclipse.debug.core.appendEnvironmentVariables" value="true"/>
-<stringAttribute key="org.eclipse.jdt.launching.MAIN_TYPE" value="ch.systemsx.cisd.openbis.dss.generic.DataStoreServer"/>
-<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="datastore_server"/>
-<stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-ea"/>
-</launchConfiguration>
+<?xml version="1.0" encoding="UTF-8"?>
+<launchConfiguration type="org.eclipse.jdt.launching.localJavaApplication">
+<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
+<listEntry value="/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/DataStoreServer.java"/>
+</listAttribute>
+<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
+<listEntry value="1"/>
+</listAttribute>
+<booleanAttribute key="org.eclipse.debug.core.appendEnvironmentVariables" value="true"/>
+<stringAttribute key="org.eclipse.jdt.launching.MAIN_TYPE" value="ch.systemsx.cisd.openbis.dss.generic.DataStoreServer"/>
+<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="datastore_server"/>
+<stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-ea&#10;-Dpython.path=../libraries/jython/jython-lib"/>
+</launchConfiguration>
diff --git a/deep_sequencing_unit/resource/eclipse/DSU Data Store Server.launch b/deep_sequencing_unit/resource/eclipse/DSU Data Store Server.launch
index ffb7bfaac0069e4c97e9b5b88ea9114cca1d1cda..cc082aadd582b029848572b7677f2a5b9dd8b4ab 100644
--- a/deep_sequencing_unit/resource/eclipse/DSU Data Store Server.launch	
+++ b/deep_sequencing_unit/resource/eclipse/DSU Data Store Server.launch	
@@ -10,5 +10,5 @@
 <booleanAttribute key="org.eclipse.debug.core.appendEnvironmentVariables" value="true"/>
 <stringAttribute key="org.eclipse.jdt.launching.MAIN_TYPE" value="ch.systemsx.cisd.openbis.dss.generic.DataStoreServer"/>
 <stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="deep_sequencing_unit"/>
-<stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-Xmx512M&#13;-ea"/>
+<stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-Xmx512M&#13;-ea&#10;-Dpython.path=../libraries/jython/jython-lib"/>
 </launchConfiguration>
diff --git a/screening/resource/eclipse/screening Data Store Server.launch b/screening/resource/eclipse/screening Data Store Server.launch
index d93cc670e0fd66175076c85c917755901b1a8290..678c0d89efbe4a8eaa314d3e64ee77bc0050d5a3 100644
--- a/screening/resource/eclipse/screening Data Store Server.launch	
+++ b/screening/resource/eclipse/screening Data Store Server.launch	
@@ -9,5 +9,5 @@
 <booleanAttribute key="org.eclipse.debug.core.appendEnvironmentVariables" value="true"/>
 <stringAttribute key="org.eclipse.jdt.launching.MAIN_TYPE" value="ch.systemsx.cisd.openbis.dss.generic.DataStoreServer"/>
 <stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="screening"/>
-<stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-Xmx512M&#13;-ea"/>
+<stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-Xmx512M&#13;-ea&#10;-Dpython.path=../libraries/jython/jython-lib"/>
 </launchConfiguration>