diff --git a/docs/manual/CoreTasks/apply.html b/docs/manual/CoreTasks/apply.html
index a846bb2db..3b6fbff63 100644
--- a/docs/manual/CoreTasks/apply.html
+++ b/docs/manual/CoreTasks/apply.html
@@ -26,6 +26,10 @@ target file which is defined by the nested mapper element and searched
 for in the given dest.</p>
 <p>At least one fileset or filelist is required, and you must not specify more than
 one mapper.</p>
+
+<p>Note that you cannot interact with the forked program, the only way
+to send input to it is via the input and inputstring attributes.</p>
+
 <h3>Parameters</h3>
 <table border="1" cellpadding="2" cellspacing="0">
   <tr>
diff --git a/docs/manual/CoreTasks/exec.html b/docs/manual/CoreTasks/exec.html
index 50f97f8eb..ed294f7b3 100644
--- a/docs/manual/CoreTasks/exec.html
+++ b/docs/manual/CoreTasks/exec.html
@@ -13,6 +13,9 @@
 the command is only executed when Ant is run on one of the specified operating
 systems.</p>
 
+<p>Note that you cannot interact with the forked program, the only way
+to send input to it is via the input and inputstring attributes.</p>
+
 <h4>Cygwin Users</h4>
 <p>In general the &lt;exec&gt; task will not understand paths such as /bin/sh for 
 the executable parameter. This is because the Java VM in which Ant is running is a 
diff --git a/docs/manual/CoreTasks/java.html b/docs/manual/CoreTasks/java.html
index c2b9f850a..b12e673ce 100644
--- a/docs/manual/CoreTasks/java.html
+++ b/docs/manual/CoreTasks/java.html
@@ -14,6 +14,10 @@ specified.</p>
 <p>
 If odd things go wrong when you run this task, set fork="true" to use a new
 JVM.
+
+<p>Note that you cannot interact with a forked VM, the only way to
+send input to it is via the input and inputstring attributes.</p>
+
 <h3>Parameters</h3>
 <table border="1" cellpadding="2" cellspacing="0">
   <tr>