diff -ur apache-ant-1.6.5/src/main/org/apache/tools/ant/taskdefs/Exec.java apache-ant-1.6.5-antRun/src/main/org/apache/tools/ant/taskdefs/Exec.java
--- apache-ant-1.6.5/src/main/org/apache/tools/ant/taskdefs/Exec.java	2005-06-02 15:19:56.000000000 +0200
+++ apache-ant-1.6.5-antRun/src/main/org/apache/tools/ant/taskdefs/Exec.java	2006-09-12 14:57:55.000000000 +0200
@@ -99,7 +99,7 @@
                             + "found", getLocation());
                     }
 
-                    String antRun = getProject().resolveFile(ant + "/bin/antRun.bat").toString();
+                    String antRun = getProject().resolveFile("@BINDIR@/antRun.bat").toString();
                     command = antRun + " " + dir + " " + command;
                 }
             }
diff -ur apache-ant-1.6.5/src/main/org/apache/tools/ant/taskdefs/Execute.java apache-ant-1.6.5-antRun/src/main/org/apache/tools/ant/taskdefs/Execute.java
--- apache-ant-1.6.5/src/main/org/apache/tools/ant/taskdefs/Execute.java	2005-06-02 15:19:56.000000000 +0200
+++ apache-ant-1.6.5-antRun/src/main/org/apache/tools/ant/taskdefs/Execute.java	2006-09-12 15:01:09.000000000 +0200
@@ -127,7 +127,7 @@
             }
         } else {
             // Generic
-            shellLauncher = new ScriptCommandLauncher("bin/antRun",
+            shellLauncher = new ScriptCommandLauncher("antRun",
                 new CommandLauncher());
         }
     }
@@ -1038,7 +1038,7 @@
             }
             String antRun =
                 FILE_UTILS.resolveFile(project.getBaseDir(),
-                        antHome + File.separator + myScript).toString();
+                        "@BINDIR@" + File.separator + myScript).toString();
 
             // Build the command
             File commandDir = workingDir;