diff --git a/applications/jpip/CHANGES b/applications/jpip/CHANGES
index c58cc5e7..f926b5b3 100644
--- a/applications/jpip/CHANGES
+++ b/applications/jpip/CHANGES
@@ -7,6 +7,7 @@ What's New for OpenJPIP
 
 October 25, 2011
 * [kaori] patches for cmake and autotool are applied
+* [kaori] fixed client viewer to be compatible with server response header both Content-type and Content-Type
 
 October 20, 2011
 + [added] API style in openJPIP library
diff --git a/applications/jpip/util/opj_viewer/dist/opj_viewer-20111018.jar b/applications/jpip/util/opj_viewer/dist/opj_viewer-20111026.jar
similarity index 61%
rename from applications/jpip/util/opj_viewer/dist/opj_viewer-20111018.jar
rename to applications/jpip/util/opj_viewer/dist/opj_viewer-20111026.jar
index a17ca3b6..a1b6789a 100644
Binary files a/applications/jpip/util/opj_viewer/dist/opj_viewer-20111018.jar and b/applications/jpip/util/opj_viewer/dist/opj_viewer-20111026.jar differ
diff --git a/applications/jpip/util/opj_viewer/dist/opj_viewer.jar b/applications/jpip/util/opj_viewer/dist/opj_viewer.jar
index b135bb0f..4fceec6d 120000
--- a/applications/jpip/util/opj_viewer/dist/opj_viewer.jar
+++ b/applications/jpip/util/opj_viewer/dist/opj_viewer.jar
@@ -1 +1 @@
-opj_viewer-20111018.jar
\ No newline at end of file
+opj_viewer-20111026.jar
\ No newline at end of file
diff --git a/applications/jpip/util/opj_viewer/src/JPIPHttpClient.java b/applications/jpip/util/opj_viewer/src/JPIPHttpClient.java
index eee20f71..e4c86a97 100644
--- a/applications/jpip/util/opj_viewer/src/JPIPHttpClient.java
+++ b/applications/jpip/util/opj_viewer/src/JPIPHttpClient.java
@@ -178,7 +178,9 @@ public class JPIPHttpClient
 	    if( !status.contains("OK"))
 		System.err.println( headers.get("Reason"));
 	    
-	    hvalueline = headers.get("Content-type").get(0);
+	    if(( hvaluelist = headers.get("Content-type")) == null)
+		hvaluelist = headers.get("Content-Type");
+	    hvalueline = hvaluelist.get(0);
 	    System.err.println( hvalueline);
 
 	    if( hvalueline.endsWith("jpt-stream"))
diff --git a/applications/jpip/util/opj_viewer_xerces/dist/opj_viewer_xerces-20111010.jar b/applications/jpip/util/opj_viewer_xerces/dist/opj_viewer_xerces-20111026.jar
similarity index 76%
rename from applications/jpip/util/opj_viewer_xerces/dist/opj_viewer_xerces-20111010.jar
rename to applications/jpip/util/opj_viewer_xerces/dist/opj_viewer_xerces-20111026.jar
index e2f78889..f67cfb5b 100644
Binary files a/applications/jpip/util/opj_viewer_xerces/dist/opj_viewer_xerces-20111010.jar and b/applications/jpip/util/opj_viewer_xerces/dist/opj_viewer_xerces-20111026.jar differ
diff --git a/applications/jpip/util/opj_viewer_xerces/dist/opj_viewer_xerces.jar b/applications/jpip/util/opj_viewer_xerces/dist/opj_viewer_xerces.jar
index 8fbb188c..f1df7c26 120000
--- a/applications/jpip/util/opj_viewer_xerces/dist/opj_viewer_xerces.jar
+++ b/applications/jpip/util/opj_viewer_xerces/dist/opj_viewer_xerces.jar
@@ -1 +1 @@
-opj_viewer_xerces-20111010.jar
\ No newline at end of file
+opj_viewer_xerces-20111026.jar
\ No newline at end of file