diff -r ffda9b0b6626 dlight.nativeexecution/src/org/netbeans/modules/nativeexecution/api/util/HostInfoUtils.java
--- a/dlight.nativeexecution/src/org/netbeans/modules/nativeexecution/api/util/HostInfoUtils.java	Wed Mar 09 12:37:00 2011 +0300
+++ b/dlight.nativeexecution/src/org/netbeans/modules/nativeexecution/api/util/HostInfoUtils.java	Wed Mar 09 17:19:27 2011 +0300
@@ -115,7 +115,7 @@
             fileExists = npb.call().waitFor() == 0;
         }
 
-            return fileExists;
+        return fileExists;
     }
 
     public static String searchFile(ExecutionEnvironment execEnv,
@@ -233,6 +233,10 @@
         }
     }
 
+    /* package */ static void resetHostsData(final ExecutionEnvironment env) {
+        cache.remove(env);
+    }
+
     /**
      * For testing purposes only!
      */
diff -r ffda9b0b6626 dlight.nativeexecution/src/org/netbeans/modules/nativeexecution/api/util/WindowsSupport.java
--- a/dlight.nativeexecution/src/org/netbeans/modules/nativeexecution/api/util/WindowsSupport.java	Wed Mar 09 12:37:00 2011 +0300
+++ b/dlight.nativeexecution/src/org/netbeans/modules/nativeexecution/api/util/WindowsSupport.java	Wed Mar 09 17:19:27 2011 +0300
@@ -47,15 +47,19 @@
 import java.io.OutputStreamWriter;
 import java.nio.charset.Charset;
 import java.util.List;
+import java.util.concurrent.CancellationException;
 import java.util.logging.Level;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import org.netbeans.modules.nativeexecution.api.ExecutionEnvironment;
+import org.netbeans.modules.nativeexecution.api.ExecutionEnvironmentFactory;
 import org.netbeans.modules.nativeexecution.api.util.ShellValidationSupport.ShellValidationStatus;
 import org.netbeans.modules.nativeexecution.support.Logger;
 import org.netbeans.modules.nativeexecution.api.util.Shell.ShellType;
 import org.netbeans.modules.nativeexecution.support.windows.PathConverter;
 import org.netbeans.modules.nativeexecution.support.windows.PathConverter.PathType;
 import org.netbeans.modules.nativeexecution.support.windows.SimpleConverter;
+import org.openide.util.Exceptions;
 import org.openide.util.Utilities;
 
 /**
@@ -96,14 +100,29 @@
         init(null);
     }
 
-    public void init(String searchDir) {
+    public synchronized void init(String searchDir) {
         if (!isWindows) {
             return;
         }
 
         pathConverter = new SimpleConverter();
+
+        final ExecutionEnvironment env = ExecutionEnvironmentFactory.getLocal();
+        boolean resetHIU = HostInfoUtils.isHostInfoAvailable(env) ? true : false;
+        
         activeShell = findShell(searchDir);
         initCharset();
+        
+        if (resetHIU) {
+            HostInfoUtils.resetHostsData(env);
+            try {
+                HostInfoUtils.getHostInfo(env);
+            } catch (IOException ex) {
+                Exceptions.printStackTrace(ex);
+            } catch (CancellationException ex) {
+                Exceptions.printStackTrace(ex);
+            }
+        }
     }
 
     private Shell findShell(String searchDir) {