如果你的Component Database都有定時上ECE更新時，應該會碰到在May-2010 Optional update時，其中一組更新
•KB981935 - a fix for MFL and MOF MUI resources required by WMI components which may not compile properly on Embedded runtimes
困擾了一年之久的這個問題，如今終於盼到解決方法了，要解決WES 2009在安裝May 2010 QFE KB981935後，造成footprint過大問題，需要安裝May-2011 Optional update
•KB981935 v2 - This update fixes the following issue
This update resolves a regression introduced with the May-2010 Optional update KB981935, which unnecessarily increased the Embedded runtime footprint size. Please note that the XP Embedded SP2, FP2007 and UPR 1.0 platforms are no longer supported, and XP Embedded SP3 has entered Extended support and no longer receives non-Security Updates. However, this update is releasing for these platforms as well as Windows Embedded Standard 2009, because it addresses a regression introduced by an Optional Update released for all of these products while still in Mainstream support.