diff --git a/collects/net/cgi.ss b/collects/net/cgi.rkt
similarity index 100%
rename from collects/net/cgi.ss
rename to collects/net/cgi.rkt
diff --git a/collects/net/cookie.ss b/collects/net/cookie.rkt
similarity index 100%
rename from collects/net/cookie.ss
rename to collects/net/cookie.rkt
diff --git a/collects/net/dns.ss b/collects/net/dns.rkt
similarity index 100%
rename from collects/net/dns.ss
rename to collects/net/dns.rkt
diff --git a/collects/net/ftp.ss b/collects/net/ftp.rkt
similarity index 100%
rename from collects/net/ftp.ss
rename to collects/net/ftp.rkt
diff --git a/collects/net/imap.ss b/collects/net/imap.rkt
similarity index 100%
rename from collects/net/imap.ss
rename to collects/net/imap.rkt
diff --git a/collects/net/mime-util.ss b/collects/net/mime-util.rkt
similarity index 100%
rename from collects/net/mime-util.ss
rename to collects/net/mime-util.rkt
diff --git a/collects/net/mime.ss b/collects/net/mime.rkt
similarity index 100%
rename from collects/net/mime.ss
rename to collects/net/mime.rkt
diff --git a/collects/net/nntp.ss b/collects/net/nntp.rkt
similarity index 100%
rename from collects/net/nntp.ss
rename to collects/net/nntp.rkt
diff --git a/collects/net/pop3.ss b/collects/net/pop3.rkt
similarity index 100%
rename from collects/net/pop3.ss
rename to collects/net/pop3.rkt
diff --git a/collects/net/private/rbtree.ss b/collects/net/private/rbtree.rkt
similarity index 100%
rename from collects/net/private/rbtree.ss
rename to collects/net/private/rbtree.rkt
diff --git a/collects/net/qp.ss b/collects/net/qp.rkt
similarity index 100%
rename from collects/net/qp.ss
rename to collects/net/qp.rkt
diff --git a/collects/net/scribblings/common.ss b/collects/net/scribblings/common.rkt
similarity index 100%
rename from collects/net/scribblings/common.ss
rename to collects/net/scribblings/common.rkt
diff --git a/collects/net/scribblings/info.ss b/collects/net/scribblings/info.rkt
similarity index 100%
rename from collects/net/scribblings/info.ss
rename to collects/net/scribblings/info.rkt
diff --git a/collects/net/sendmail.ss b/collects/net/sendmail.rkt
similarity index 100%
rename from collects/net/sendmail.ss
rename to collects/net/sendmail.rkt
diff --git a/collects/net/sendurl.ss b/collects/net/sendurl.rkt
similarity index 100%
rename from collects/net/sendurl.ss
rename to collects/net/sendurl.rkt
diff --git a/collects/net/smtp.ss b/collects/net/smtp.rkt
similarity index 100%
rename from collects/net/smtp.ss
rename to collects/net/smtp.rkt
diff --git a/collects/net/ssl-tcp-unit.ss b/collects/net/ssl-tcp-unit.rkt
similarity index 100%
rename from collects/net/ssl-tcp-unit.ss
rename to collects/net/ssl-tcp-unit.rkt
diff --git a/collects/net/tcp-redirect.ss b/collects/net/tcp-redirect.rkt
similarity index 100%
rename from collects/net/tcp-redirect.ss
rename to collects/net/tcp-redirect.rkt
diff --git a/collects/net/tcp-sig.ss b/collects/net/tcp-sig.rkt
similarity index 100%
rename from collects/net/tcp-sig.ss
rename to collects/net/tcp-sig.rkt
diff --git a/collects/net/tcp-unit.ss b/collects/net/tcp-unit.rkt
similarity index 100%
rename from collects/net/tcp-unit.ss
rename to collects/net/tcp-unit.rkt
diff --git a/collects/net/unihead.ss b/collects/net/unihead.rkt
similarity index 100%
rename from collects/net/unihead.ss
rename to collects/net/unihead.rkt
diff --git a/collects/tests/mzscheme/net.ss b/collects/tests/mzscheme/net.rkt
similarity index 100%
rename from collects/tests/mzscheme/net.ss
rename to collects/tests/mzscheme/net.rkt
diff --git a/collects/tests/net/cgi.ss b/collects/tests/net/cgi.rkt
similarity index 100%
rename from collects/tests/net/cgi.ss
rename to collects/tests/net/cgi.rkt
diff --git a/collects/tests/net/cookie.ss b/collects/tests/net/cookie.rkt
similarity index 92%
rename from collects/tests/net/cookie.ss
rename to collects/tests/net/cookie.rkt
index 601eb3d71f..57200a5927 100644
--- a/collects/tests/net/cookie.ss
+++ b/collects/tests/net/cookie.rkt
@@ -19,12 +19,12 @@
     (syntax-rules ()
       [(o/* x) x]
       [(o/* x f g ...) (f (o/* x g ...))]))
-
+  
   (define (tests)
-
+    
     ;; test the most basic functionality
     (cookie-test (λ (x) x) "a=b; Version=1")
-
+    
     ;; test each modifier individually
     (cookie-test (RC cookie:add-comment "set+a+to+b")
                  "a=b; Comment=set+a+to+b; Version=1")
@@ -54,7 +54,7 @@
                  "a=b; Version=1")
     (cookie-test (RC cookie:version 12)
                  "a=b; Version=12")
-
+    
     ;; test combinations
     (cookie-test (o (RC cookie:add-comment "set+a+to+b")
                     (RC cookie:add-domain ".example.net"))
@@ -66,7 +66,7 @@
                     (RC cookie:version 10)
                     (RC cookie:add-max-age 20))
                  "a=b; Max-Age=20; Path=\"/whatever/wherever/\"; Version=10")
-
+    
     ;; test error cases
     (let ()
       (define-syntax cookie-error-test
@@ -78,7 +78,18 @@
       (cookie-error-test (RC cookie:add-domain "doesntstartwithadot.example.com"))
       (cookie-error-test (RC cookie:add-domain "bad domain.com"))
       (cookie-error-test (RC cookie:add-domain ".bad-domain;com")))
-
+    
+    ; cookie value
+    (test
+     (cookie-value? "value")
+     (cookie-value? "(")
+     (cookie-value? "!")
+     (cookie-value? ")")
+     (cookie-value? ")!")
+     (cookie-value? "(!")
+     (cookie-value? "(!)")
+     (cookie-value? "!)"))
+    
     )
-
+  
   (test do (tests)))
diff --git a/collects/tests/net/encoders.ss b/collects/tests/net/encoders.rkt
similarity index 100%
rename from collects/tests/net/encoders.ss
rename to collects/tests/net/encoders.rkt
diff --git a/collects/tests/net/head.ss b/collects/tests/net/head.rkt
similarity index 100%
rename from collects/tests/net/head.ss
rename to collects/tests/net/head.rkt
diff --git a/collects/tests/net/main.ss b/collects/tests/net/main.rkt
similarity index 100%
rename from collects/tests/net/main.ss
rename to collects/tests/net/main.rkt
diff --git a/collects/tests/net/uri-codec.ss b/collects/tests/net/uri-codec.rkt
similarity index 100%
rename from collects/tests/net/uri-codec.ss
rename to collects/tests/net/uri-codec.rkt
diff --git a/collects/tests/net/url.ss b/collects/tests/net/url.rkt
similarity index 100%
rename from collects/tests/net/url.ss
rename to collects/tests/net/url.rkt