error: 80040154

UCCAPI是oc客户端开发SDK，今天在试网上下载的一个例子时，当代码执行初始化UccUriManager mgr = new UccUriManager();发生异常：“Retrieving the COM class factory for component with CLSID {201D2DCD-AF4F-484E-9793-56CAC5EC0C16} failed due to the following error: 80040154”

经过查找，有可能是在网上提供的源代码引用uccapi.dll时生成的Microsoft.Office.Interop.UccApi.Dll是在本机上获得的registry key, 但当在你本机用regsvr32 注册 uccapi.dll的时候，生成的registry key是不一样，所以COM初始化找不到对应的key,就失败了。用

   Windows Registry Editor Version 5.00

   -- UccPlatform clsid="{EC10E7E8-797E-4495-A86D-3E9EADA6D5BB}"
   [HKEY_CLASSES_ROOT\CLSID\{EC10E7E8-797E-4495-A86D-3E9EADA6D5BB}]
   @="UccPlatform Class"
   "AppID"="MyTestApp"

   [HKEY_CLASSES_ROOT\CLSID\{EC10E7E8-797E-4495-A86D-3E9EADA6D5BB}\InprocServer32]
   @="C:\\Microsoft UCCAPI\\uccapi.dll"
   "ThreadingModel"="Apartment"

   [HKEY_CLASSES_ROOT\CLSID\{EC10E7E8-797E-4495-A86D-3E9EADA6D5BB}\ProgID]
   @="UCCP.UccPlatform.1"

   [HKEY_CLASSES_ROOT\CLSID\{EC10E7E8-797E-4495-A86D-3E9EADA6D5BB}\TypeLib]
   @="{ECD5307E-4419-43CF-8BDA-C9946AC375CF}"

   [HKEY_CLASSES_ROOT\CLSID\{EC10E7E8-797E-4495-A86D-3E9EADA6D5BB}\VersionIndependentProgID]
   @="UCCP.UccPlatform"

   -- UccContext clsid="{3af68966-5194-4de0-bdab-ae03653d914b}"
   [HKEY_CLASSES_ROOT\CLSID\{3af68966-5194-4de0-bdab-ae03653d914b}]
   @="UccContext Class"
   "AppID"=""

   [HKEY_CLASSES_ROOT\CLSID\{3af68966-5194-4de0-bdab-ae03653d914b}\InprocServer32]
   @="C:\\Microsoft UCCAPI\\UccApi.dll"
   "ThreadingModel"="Apartment"

   [HKEY_CLASSES_ROOT\CLSID\{3af68966-5194-4de0-bdab-ae03653d914b}\ProgID]
   @="UCCP.UccContext.1"

   [HKEY_CLASSES_ROOT\CLSID\{3af68966-5194-4de0-bdab-ae03653d914b}\TypeLib]
   @="{ECD5307E-4419-43CF-8BDA-C9946AC375CF}"

   [HKEY_CLASSES_ROOT\CLSID\{3af68966-5194-4de0-bdab-ae03653d914b}\VersionIndependentProgID]
   @="UCCP.UccContext"

注册一下即可初始化成功

http://social.microsoft.com/Forums/is/communicatorextensibility/thread/8b29c87c-b085-45fc-85cb-865ba0b990c3