@@ -201,7 +201,7 @@ define("System.InvalidCastException", {
   end
 })
 
-define("System.InvalidOperationException", {
+local InvalidOperationException = define("System.InvalidOperationException", {
   __tostring = toString,
   __inherits__ = { SystemException },
   __ctor__ = function(this, message, innerException) 
@@ -249,6 +249,17 @@ define("System.TypeLoadException", {
   end
 })
 
+define("System.ObjectDisposedException", {
+  __tostring = toString,
+  __inherits__ = { InvalidOperationException },
+  __ctor__ = function(this, objectName, message, innerException)
+    ctorOfException(this, message or "Cannot access a disposed object.", innerException)
+    this.objectName = objectName
+    if objectName and #objectName > 0 then
+      this.message = this.message .. "\nObject name: '" .. objectName .. "'."
+    end
+  end
+})
 
 local function toStringOfAggregateException(this)
   local t = { toString(this) }
 
@@ -966,7 +966,7 @@ define("System.Activator", {
         return T(unpack(args, 1, n))
       end
     end
-    local i = findMatchCtor(T, n, function (i, ...) return select(i, ...) end, ...)
+    local i = findMatchCtor(T, n, select, ...)
     if i and i ~= 1 then
       return System.new(T, i, ...)
     end
 
@@ -163,7 +163,7 @@ local function throwFormatError()
   throw(FormatException("Input string was not in a correct format."))
 end
 
-local function formatBuild(format, args, len)
+local function formatBuild(format, len, select, ...)
   local t, count = {}, 1
   local i, j, s = 1
   while true do
@@ -211,24 +211,28 @@ local function formatBuild(format, args, len)
     if not i then throwFormatError() end
     s = s + 1
     if s > len then throwFormatError() end
-    s = args[s]
+    s = select(s, ...)
     s = (s ~= nil and s ~= System.null) and s:ToString() or ""
     t[count] = s
     count = count + 1
     i = j + 1
   end
 end
 
+local function selectTable(i, t)
+  return t[i]
+end
+
 local function format(format, ...)
   if format == nil then throw(ArgumentNullException()) end
   local len = select("#", ...)
   if len == 1 then
     local args = ...
     if System.isArrayLike(args) then
-      return formatBuild(format, args, #args)
+      return formatBuild(format, #args, selectTable, args)
     end
   end
-  return formatBuild(format, { ... }, len)
+  return formatBuild(format, len, select, ...)
 end
 
 local function isNullOrEmpty(value)