--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwt/internal/mozilla/nsICollection.d	Wed Aug 06 18:29:44 2008 -0700
@@ -0,0 +1,33 @@
+module dwt.internal.mozilla.nsICollection;
+
+import dwt.internal.mozilla.Common;
+import dwt.internal.mozilla.nsID;
+import dwt.internal.mozilla.nsISupports;
+
+import dwt.internal.mozilla.nsISerializable;
+import dwt.internal.mozilla.nsIEnumerator;
+
+const char[] NS_ICOLLECTION_IID_STR = "83b6019c-cbc4-11d2-8cca-0060b0fc14a3";
+
+const nsIID NS_ICOLLECTION_IID= 
+  {0x83b6019c, 0xcbc4, 0x11d2, 
+    [ 0x8c, 0xca, 0x00, 0x60, 0xb0, 0xfc, 0x14, 0xa3 ]};
+
+extern(System)
+
+interface nsICollection : nsISerializable {
+
+  static const char[] IID_STR = NS_ICOLLECTION_IID_STR;
+  static const nsIID IID = NS_ICOLLECTION_IID;
+
+  nsresult Count(PRUint32 *_retval);
+  nsresult GetElementAt(PRUint32 index, nsISupports *_retval);
+  nsresult QueryElementAt(PRUint32 index, nsIID * uuid, void * *result);
+  nsresult SetElementAt(PRUint32 index, nsISupports item);
+  nsresult AppendElement(nsISupports item);
+  nsresult RemoveElement(nsISupports item);
+  nsresult Enumerate(nsIEnumerator *_retval);
+  nsresult Clear();
+
+}
+