Thank you for your reply Talikag

It was very helpfull , i can now save the information in a xml file but when i try to read them back it gaves an error like "can't convert to FontDialog etc."
This is the code
Code:
 if (cfgReader.LocalName.Equals("Font"))
                        {
                            temp = cfgReader.ReadString();
                            if (temp != null)
                                this.txtMemo.Font = (FontDialog)temp;
                        }
Any advice is welcome again