微软推出的免费杀毒软件Microsoft Security Essentials(MSE)成为了不少朋友的杀毒工具，但是在实际使用中，也常常出现一些无法更新的问题。

The DCOMLAUNCH service launches COM and DCOM servers in response to object activation requests. If this service is stopped or disabled, programs using COM or DCOM will not function properly.