diff --git a/profile/public/MANIFEST_IDL b/profile/public/MANIFEST_IDL
index 308feca253af..170191bb7f9e 100644
--- a/profile/public/MANIFEST_IDL
+++ b/profile/public/MANIFEST_IDL
@@ -1 +1,2 @@
 nsIProfile.idl
+nsIProfileStartupListener.idl
diff --git a/profile/public/Makefile.in b/profile/public/Makefile.in
index 3cb2ef82b09b..6b0cd36b7bd1 100644
--- a/profile/public/Makefile.in
+++ b/profile/public/Makefile.in
@@ -28,7 +28,10 @@ include $(DEPTH)/config/autoconf.mk
 
 MODULE		= profile
 
-XPIDLSRCS	= nsIProfile.idl
+XPIDLSRCS	= \
+                  nsIProfile.idl \
+                  nsIProfileStartupListener.idl \
+                  $(NULL)
 
 include $(topsrcdir)/config/rules.mk
 
diff --git a/profile/public/makefile.win b/profile/public/makefile.win
index e7a83501e8df..fec9e839a054 100644
--- a/profile/public/makefile.win
+++ b/profile/public/makefile.win
@@ -31,6 +31,7 @@ EXPORTS=nsIAccount.h \
 
 XPIDLSRCS = \
     .\nsIProfile.idl	\
+    .\nsIProfileStartupListener.idl	\
     $(NULL)
 
 include <$(DEPTH)\config\rules.mak>
diff --git a/profile/public/nsIProfile.idl b/profile/public/nsIProfile.idl
index 46afa3be4564..90e6b6004b60 100644
--- a/profile/public/nsIProfile.idl
+++ b/profile/public/nsIProfile.idl
@@ -40,7 +40,8 @@ interface nsIFileSpec;
 #define NS_PROFILE_PROGID	\
 	"component://netscape/profile/manager"
 
-#define PREG_PREF	"browser.registration.enable"
+#define NS_PROFILE_STARTUP_CATEGORY \
+        "profile-startup-category"
 %}
 
 [ptr] native nsFileSpec(nsFileSpec);
@@ -77,14 +78,6 @@ interface nsIProfile : nsISupports {
 
     void migrateProfile(in wstring profileName, in boolean showProgressAsModalWindow);
 
-    string getCookie();
-
-    void ProcessPRegCookie();
-
-    string isPregCookieSet(in wstring profileName);
-
-    void processPREGInfo(in string data);
-
     long get4xProfileCount();
 
     void migrateAllProfiles();
@@ -92,11 +85,15 @@ interface nsIProfile : nsISupports {
     void forgetCurrentProfile();
     void loadNewProfilePrefs();
     boolean isCurrentProfileAvailable();
-    void removeCookie(in string cookie);
 
     attribute boolean automigrate;
 
     readonly attribute nsIFileSpec defaultProfileParentDir;
+
+    void updateRegistry();
+    void setRegString(in wstring profileName, in wstring regString);
+    string isRegStringSet(in wstring profileName); 
+
 };
 
 #endif /* nsIProfile_h__ */