关于Windows Update Agent API, IUpdateSession::CreateUpdateInstaller始终不成功

Windows Update Agent API谁用过...
IUpdateSession建立成功,ISearchResult也正确返回..IUpdateDownloader也能下载,为什么IUpdateInstaller建立不成功?

IUpdateInstaller * pUpdateInstaller = NULL;
hr = pSession->CreateUpdateInstaller(&pUpdateInstaller);

始终返回0x80020008

我本机用msdn上的脚本执行没问题啊...
MSDN脚本:http://msdn.microsoft.com/en-us/library/aa387102(VS.85).aspx

6 个解决方案

#1

没用过,帮顶

#2

关于Windows Update Agent API, IUpdateSession::CreateUpdateInstaller始终不成功

没人了解啊

#3

(0x80020008) (-2147352568) Bad variable type
Cause: The datatype of a PL/SQL or Java value passed as a method parameter did not match the COM Automation data type of the method parameter, or a NULL value was passed as a method parameter.
Action: Ensure that any local variables used as method parameters are of the appropriate data type and are set to a value other than NULL.

#4

楼主把代码都贴出来大家看看吧。

#5

问题解决..
hr = CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER, IID_IDispatch, (void **)&pDisp);
的时候第三个参数用错了..
错误的用了CLSCTX_LOCAL_SERVER

#6

想问问楼主如何获取到下载的进度啊.???

#1