• I've unzipped the processing with java to a directory and
• when I click on Processing.exe the first time I get an error message and do not see the display window but I do see the processing window. 
• From then on when I click on Processing.exe I don't see the error message or the display window
• Eventually I see following stack trace in the processing window:

java.net.ConnectException: Connection timed out: connect
 at java.net.PlainSocketImpl.socketConnect(Native Method)
 at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
 at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
 at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
 at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
 at java.net.Socket.connect(Socket.java:529)
 at java.net.Socket.connect(Socket.java:478)
 at sun.net.NetworkClient.doConnect(NetworkClient.java:163)
 at sun.net.www.http.HttpClient.openServer(HttpClient.java:394)
 at sun.net.www.http.HttpClient.openServer(HttpClient.java:529)
 at sun.net.www.http.HttpClient.<init>(HttpClient.java:233)
 at sun.net.www.http.HttpClient.New(HttpClient.java:306)
 at sun.net.www.http.HttpClient.New(HttpClient.java:323)
 at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:970)
 at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:911)
 at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:836)
 at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1172)
 at java.net.URL.openStream(URL.java:1010)
 at processing.app.UpdateCheck.readInt(UpdateCheck.java:131)
 at processing.app.UpdateCheck.updateCheck(UpdateCheck.java:93)
 at processing.app.UpdateCheck$1.run(UpdateCheck.java:63)
 at java.lang.Thread.run(Thread.java:662)

• I've tried the Troubleshooting suggestions for Windows on http://wiki.processing.org/w/Troubleshooting under "Processing won't start..."
• I've tried running ".\processing.exe --l4j-debug" but the launch4j.log is empty.
• I've looked in the windows registry but there are no keys for Processing.