Open XML Format converters for Word 2007 SP2, Excel 2007 SP2, or PowerPoint 2007 SP2 are implemented as out-of-process COM servers. Out-of-process converters have the benefit of running in their own process space, which means issues or crashes within converters do not affect the application process space. In addition, out-of-process 32-bit converters can function on 64-bit operating systems in Microsoft Windows on Windows 64-bit (WoW64) mode without the need for converters to be compiled in 64-bit.