diff --git a/scheme/interfaces.scm b/scheme/interfaces.scm
index ec064c2..389a96a 100644
--- a/scheme/interfaces.scm
+++ b/scheme/interfaces.scm
@@ -131,7 +131,7 @@
     ldap-return-id
     ldap-message-types-id
     ldap-operation-id)))
-
+    
 (define-interface ldap-types-interface
   (compound-interface
    ldap-handle-types-interface
@@ -144,7 +144,12 @@
    ldap-generated-types-internal-interface
    (export
     convert-ldap-return-code
-    convert-ldap-message-type)))
+    convert-ldap-message-type
+
+    ldap-session-weak-list
+    ldap-session-weak-list-filter!
+    set-ldap-session-weak-list!
+    ldap-session-weak-list-add!)))
 
 (define-interface ldap-conditions-interface
   (export
diff --git a/scheme/packages.scm b/scheme/packages.scm
index b9721d8..e9abb0b 100644
--- a/scheme/packages.scm
+++ b/scheme/packages.scm
@@ -14,6 +14,7 @@
   (open scheme-with-scsh
 	external-calls
 	define-record-types
+	weak srfi-1
 	finite-types
 	ffi-tools-rts
 	ldap-generated-types-internal)
diff --git a/scheme/types.scm b/scheme/types.scm
index 027426e..8b43f9c 100644
--- a/scheme/types.scm
+++ b/scheme/types.scm
@@ -18,6 +18,11 @@
   (options ldap-session-options set-ldap-session-options!)
   (weak-list ldap-session-weak-list set-ldap-session-weak-list!))
 
+(define-record-discloser :ldap-session
+  (lambda (r)
+    `(ldap-session (struct ,(ldap-session-c-pointer r))
+		   (bound? ,(ldap-session-bound? r)))))
+
 (define (ldap-session-weak-list-add! session thing)
   (set-ldap-session-weak-list!
    session (cons-weak thing (ldap-session-weak-list session))))
@@ -58,6 +63,10 @@
 
 (define-exported-binding "ldap-message" :ldap-message)
 
+(define-record-discloser :ldap-message
+  (lambda (r)
+    `(ldap-message (struct ,(ldap-message-c-pointer r)))))
+
 (define (ldap-message=? session-a session-b)
   (equal? (ldap-message-c-pointer session-a)
 	  (ldap-message-c-pointer session-b)))
@@ -71,6 +80,12 @@
 
 (define-exported-binding "ldap-modification" :ldap-modification)
 
+(define-record-discloser :ldap-modification
+  (lambda (r)
+    `(ldap-modification (operator ,(ldap-modification-operator r))
+			(type ,(ldap-modification-type r))
+			(values ,(ldap-modification-value-list r)))))
+
 (define (make-ldap-modification operator type value-list)
   (really-make-ldap-modification
    (ldap-operation-id operator) type value-list))