diff --git a/scriptbuilder/src/main/java/org/jclouds/scriptbuilder/domain/Call.java b/scriptbuilder/src/main/java/org/jclouds/scriptbuilder/domain/Call.java
index 79ae40ddb5..e0ee8af4ac 100644
--- a/scriptbuilder/src/main/java/org/jclouds/scriptbuilder/domain/Call.java
+++ b/scriptbuilder/src/main/java/org/jclouds/scriptbuilder/domain/Call.java
@@ -55,8 +55,7 @@ public class Call implements Statement {
    public String render(OsFamily family) {
       StringBuilder args = new StringBuilder();
       for (String arg : this.args) {
-         args.append(String.format(" \"%s\"", Utils.replaceTokens(arg, ShellToken
-                  .tokenValueMap(family))));
+         args.append(" ").append(Utils.replaceTokens(arg, ShellToken.tokenValueMap(family)));
       }
       StringBuilder call = new StringBuilder();
       call.append(Utils.replaceTokens(OS_TO_CALL.get(family), ImmutableMap.of("function", function,
diff --git a/scriptbuilder/src/main/java/org/jclouds/scriptbuilder/domain/ShellToken.java b/scriptbuilder/src/main/java/org/jclouds/scriptbuilder/domain/ShellToken.java
index d40fe2fa58..5e8197fb59 100644
--- a/scriptbuilder/src/main/java/org/jclouds/scriptbuilder/domain/ShellToken.java
+++ b/scriptbuilder/src/main/java/org/jclouds/scriptbuilder/domain/ShellToken.java
@@ -149,7 +149,7 @@ public enum ShellToken {
          case END_SCRIPT:
             switch (family) {
                case WINDOWS:
-                  return "exit 0\r\n";
+                  return "exit /b 0\r\n";
                case UNIX:
                   return "exit 0\n";
             }
@@ -170,7 +170,7 @@ public enum ShellToken {
          case EXIT:
             switch (family) {
                case WINDOWS:
-                  return "exit";
+                  return "exit /b";
                case UNIX:
                   return "exit";
             }
diff --git a/scriptbuilder/src/main/java/org/jclouds/scriptbuilder/util/Utils.java b/scriptbuilder/src/main/java/org/jclouds/scriptbuilder/util/Utils.java
index 65e75d6151..f62f6244a1 100644
--- a/scriptbuilder/src/main/java/org/jclouds/scriptbuilder/util/Utils.java
+++ b/scriptbuilder/src/main/java/org/jclouds/scriptbuilder/util/Utils.java
@@ -215,8 +215,8 @@ public class Utils {
    }
 
    public static final Map<OsFamily, String> OS_TO_ZERO_PATH = ImmutableMap.of(OsFamily.WINDOWS,
-            "set PATH=c:\\windows\\;C:\\windows\\system32\r\n", OsFamily.UNIX,
-            "export PATH=/usr/ucb/bin:/bin:/usr/bin:/usr/sbin\n");
+            "set PATH=c:\\windows\\;C:\\windows\\system32;c:\\windows\\system32\\wbem\r\n",
+            OsFamily.UNIX, "export PATH=/usr/ucb/bin:/bin:/usr/bin:/usr/sbin\n");
 
    /**
     * @return line used to zero out the path of the script such that basic commands such as unix ps
diff --git a/scriptbuilder/src/main/resources/functions/abort.cmd b/scriptbuilder/src/main/resources/functions/abort.cmd
index 3d79b48c4f..9ca47282a3 100644
--- a/scriptbuilder/src/main/resources/functions/abort.cmd
+++ b/scriptbuilder/src/main/resources/functions/abort.cmd
@@ -1,3 +1,3 @@
 :abort
    echo aborting: %EXCEPTION%
-   exit 1
+   exit /b 1
diff --git a/scriptbuilder/src/main/resources/functions/findPid.cmd b/scriptbuilder/src/main/resources/functions/findPid.cmd
index 7653c210e5..149a26c1c7 100644
--- a/scriptbuilder/src/main/resources/functions/findPid.cmd
+++ b/scriptbuilder/src/main/resources/functions/findPid.cmd
@@ -1,16 +1,14 @@
 :findPid
    set FOUND_PID=
-   SETLOCAL
-   set _pid=
    set _expression=%1
    shift
-   set FIND_PROCESS=wmic process where (CommandLine like "%_expression%%%") get ProcessId
-   for /f "usebackq skip=1" %%a in (`cmd /c "%FIND_PROCESS% 2>NUL"`) do (
-      if not defined _proc (
-         set _pid=%%a
-         goto :done
-      )
+   set FIND_PROCESS=TASKLIST /FI "WINDOWTITLE eq %_expression%" /NH
+   FOR /F "usebackq tokens=2 delims= " %%A IN (`cmd /c "%FIND_PROCESS% 2>NUL"`) DO (
+      SET FOUND_PID=%%A
+   )
+   if defined FOUND_PID (
+      exit /b 0
+   ) else (
+      set EXCEPTION=%_expression% not found
+      exit /b 1
    )
-   :done
-   ENDLOCAL&SET FOUND_PID=%_pid%
-   exit /b 0
diff --git a/scriptbuilder/src/test/java/org/jclouds/scriptbuilder/domain/CallTest.java b/scriptbuilder/src/test/java/org/jclouds/scriptbuilder/domain/CallTest.java
index 298c904c42..9bc4c7958e 100644
--- a/scriptbuilder/src/test/java/org/jclouds/scriptbuilder/domain/CallTest.java
+++ b/scriptbuilder/src/test/java/org/jclouds/scriptbuilder/domain/CallTest.java
@@ -45,12 +45,12 @@ public class CallTest {
 
    public void testCallArgsUNIX() {
       Call call = new Call("help", "me", "rhonda");
-      assertEquals(call.render(OsFamily.UNIX), "help \"me\" \"rhonda\" || return 1\n");
+      assertEquals(call.render(OsFamily.UNIX), "help me rhonda || return 1\n");
    }
 
    public void testCallArgsWINDOWS() {
       Call call = new Call("help", "me", "rhonda");
       assertEquals(call.render(OsFamily.WINDOWS),
-               "call :help \"me\" \"rhonda\"\r\nif errorlevel 1 goto abort\r\n");
+               "call :help me rhonda\r\nif errorlevel 1 goto abort\r\n");
    }
 }
diff --git a/scriptbuilder/src/test/java/org/jclouds/scriptbuilder/domain/ShellTokenTest.java b/scriptbuilder/src/test/java/org/jclouds/scriptbuilder/domain/ShellTokenTest.java
index ab69032114..4aa1849075 100644
--- a/scriptbuilder/src/test/java/org/jclouds/scriptbuilder/domain/ShellTokenTest.java
+++ b/scriptbuilder/src/test/java/org/jclouds/scriptbuilder/domain/ShellTokenTest.java
@@ -55,11 +55,11 @@ public class ShellTokenTest {
    public void testTokenValueMapWindows() {
       Map<String, String> expected = new ImmutableMap.Builder<String, String>().put("fs", "\\")
                .put("ps", ";").put("lf", "\r\n").put("sh", "cmd").put("source", "@call").put("rem",
-                        "@rem").put("args", "%*").put("varl", "%").put("exit", "exit").put("varr",
+                        "@rem").put("args", "%*").put("varl", "%").put("exit", "exit /b").put("varr",
                         "%").put("libraryPathVariable", "PATH").put("return", "exit /b").put("vq",
                         "").put("beginFunctions", "GOTO FUNCTION_END\r\n").put("endFunctions",
                         ":FUNCTION_END\r\n").put("beginScript", "@echo off\r\n").put("endScript",
-                        "exit 0\r\n").put("fncl", ":").put("fncr", "\r\n").put("fnce",
+                        "exit /b 0\r\n").put("fncl", ":").put("fncr", "\r\n").put("fnce",
                         "   exit /b 0\r\n").put("export", "set").build();
 
       assertEquals(ShellToken.tokenValueMap(OsFamily.WINDOWS), expected);
diff --git a/scriptbuilder/src/test/resources/test_find_pid.bash b/scriptbuilder/src/test/resources/test_find_pid.bash
index 802a7f75a2..4a0f92692b 100644
--- a/scriptbuilder/src/test/resources/test_find_pid.bash
+++ b/scriptbuilder/src/test/resources/test_find_pid.bash
@@ -23,6 +23,6 @@ function findPid {
    }
 }
 export PATH=/usr/ucb/bin:/bin:/usr/bin:/usr/sbin
-findPid "$@" || exit 1
+findPid $@ || exit 1
 echo $FOUND_PID
 exit 0
diff --git a/scriptbuilder/src/test/resources/test_find_pid.cmd b/scriptbuilder/src/test/resources/test_find_pid.cmd
index 5b3d075815..99a931b53c 100644
--- a/scriptbuilder/src/test/resources/test_find_pid.cmd
+++ b/scriptbuilder/src/test/resources/test_find_pid.cmd
@@ -5,26 +5,24 @@ set PATH=
 GOTO FUNCTION_END
 :abort
    echo aborting: %EXCEPTION%
-   exit 1
+   exit /b 1
 :findPid
    set FOUND_PID=
-   SETLOCAL
-   set _pid=
    set _expression=%1
    shift
-   set FIND_PROCESS=wmic process where (CommandLine like "%_expression%%%") get ProcessId
-   for /f "usebackq skip=1" %%a in (`cmd /c "%FIND_PROCESS% 2>NUL"`) do (
-      if not defined _proc (
-         set _pid=%%a
-         goto :done
-      )
+   set FIND_PROCESS=TASKLIST /FI "WINDOWTITLE eq %_expression%" /NH
+   FOR /F "usebackq tokens=2 delims= " %%A IN (`cmd /c "%FIND_PROCESS% 2>NUL"`) DO (
+      SET FOUND_PID=%%A
+   )
+   if defined FOUND_PID (
+      exit /b 0
+   ) else (
+      set EXCEPTION=%_expression% not found
+      exit /b 1
    )
-   :done
-   ENDLOCAL&SET FOUND_PID=%_pid%
-   exit /b 0
 :FUNCTION_END
-set PATH=c:\windows\;C:\windows\system32
-call :findPid "%*"
+set PATH=c:\windows\;C:\windows\system32;c:\windows\system32\wbem
+call :findPid %*
 if errorlevel 1 goto abort
 echo %FOUND_PID%
-exit 0
+exit /b 0
diff --git a/scriptbuilder/src/test/resources/test_script.cmd b/scriptbuilder/src/test/resources/test_script.cmd
index 843a6aebd9..df9b3fbdd9 100644
--- a/scriptbuilder/src/test/resources/test_script.cmd
+++ b/scriptbuilder/src/test/resources/test_script.cmd
@@ -5,12 +5,12 @@ set PATH=
 GOTO FUNCTION_END
 :abort
    echo aborting: %EXCEPTION%
-   exit 1
+   exit /b 1
 :default
    set JAVA_HOME=/apps/jdk1.6
    exit /b 0
 :FUNCTION_END
-set PATH=c:\windows\;C:\windows\system32
+set PATH=c:\windows\;C:\windows\system32;c:\windows\system32\wbem
 goto CASE%1
 :CASE_start
    echo started
@@ -19,4 +19,4 @@ goto CASE%1
    echo stopped
    GOTO END_SWITCH
 :END_SWITCH
-exit 0
+exit /b 0