Update README.txt

packaging/README.txt

@@ -9,3 +9,25 @@ The installers will be created in the target/install4j subdirectory.
 It's no longer necessary to run "mvn install4j:compile" as that task has
 been scheduled to run automatically in the "compile" phase.
 
+Note to Windows developers:
+
+You'll run into two kinds of trouble. 
+
+First, Maven doesn't deal well with blanks in path names. This causes
+problems when Install4J installs into "C:\Program Files", which is 
+its default. It also causes trouble if your cytoscape-gui-distribution
+repo is in a user directory that contains a blank (e.g., 
+"C:\Users\Elmer Fudd"). In both cases, you can solve the problem 
+by creating soft links (e.g., C:\ProgramFiles and C:\Users\ElmerFudd)
+that refer to the actual directories 
+(e.g., mkdir /d C:\ProgramFiles "C:\Program Files"). 
+
+Second, when Maven checks the <install4j.executable> property, it's
+looking for an exact file name match. You must supply the .EXE 
+suffix (e.g., C:\ProgramFiles\install4j6\bin\install4jc.exe).
+
+
+
+
+This causes trouble in the 
+<install4j.executable>