diff --git a/core/pom.xml b/core/pom.xml
index 8ee70efb49cf170461158100daab03f4c2021e5e..28bbb7044bff3d56ba2ae53c791359dca2ce4d6c 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -596,7 +596,7 @@ THE SOFTWARE.
     <dependency>
       <groupId>org.jvnet.winp</groupId>
       <artifactId>winp</artifactId>
-      <version>1.10</version>
+      <version>1.11</version>
     </dependency>
     <dependency>
       <groupId>org.jvnet.hudson</groupId>
diff --git a/core/src/main/java/hudson/util/ProcessTree.java b/core/src/main/java/hudson/util/ProcessTree.java
index 6f4bd2eb23e1714321517b0d36c4d9d18618474b..bc14679cd938261dba951248048740b999b98e12 100644
--- a/core/src/main/java/hudson/util/ProcessTree.java
+++ b/core/src/main/java/hudson/util/ProcessTree.java
@@ -77,7 +77,7 @@ public abstract class ProcessTree implements Iterable<OSProcess> {
     /**
      * To be filled in the constructor of the derived type.
      */
-    private final Map<Integer/*pid*/, OSProcess> processes = new HashMap<Integer, OSProcess>();
+    protected final Map<Integer/*pid*/, OSProcess> processes = new HashMap<Integer, OSProcess>();
 
     // instantiation only allowed for subtypes in this class
     private ProcessTree() {}
@@ -158,11 +158,10 @@ public abstract class ProcessTree implements Iterable<OSProcess> {
             return r;
         }
 
-        // TODO: pending new Winp
-//        /**
-//         * Kills this process.
-//         */
-//        public abstract void kill();
+        /**
+         * Kills this process.
+         */
+        public abstract void kill();
 
         /**
          * Kills this process and all the descendants.
@@ -266,6 +265,10 @@ public abstract class ProcessTree implements Iterable<OSProcess> {
                     proc.destroy();
                 }
 
+                public void kill() {
+                    proc.destroy();
+                }
+
                 public List<String> getArguments() {
                     return Collections.emptyList();
                 }
@@ -302,6 +305,10 @@ public abstract class ProcessTree implements Iterable<OSProcess> {
                         p.killRecursively();
                     }
 
+                    public void kill() {
+                        p.kill();
+                    }
+
                     @Override
                     public synchronized List<String> getArguments() {
                         if(args==null)  args = Arrays.asList(QuotedStringTokenizer.tokenize(p.getCommandLine()));