对于计划的
自动更新 任务，基于虚拟机（VM）的客户端仅下载少量增量 DAT （
.gem ）文件。然后，客户端默认为下载完整
dat.zip 的。
代理日志中的序列类似于以下内容：
X #660 Uec Invoking Progress with ProgressEvent " 3" ProgressStep " 12" ProgressMax " 0" Message " Downloading 77747775avv.gem.
X #660 Uec found event listener
I #660 Updater Downloading 77747775avv.gem.
I #660 Uec Done processing progress information
X #660 ipcchannel Sending data to IPC object
X #660 ipcchannel Getting data from IPC object
I #660 Uec Received ipc data from mue
I #660 Uec Processing progress information
X #660 Uec Invoking Progress with ProgressEvent " 3" ProgressStep " 12" ProgressMax " 0" Message " Downloading 77757776avv.gem.
X #660 Uec found event listener
I #660 Updater Downloading 77757776avv.gem.
I #660 Uec Done processing progress information
X #660 ipcchannel Sending data to IPC object
X #660 ipcchannel Getting data from IPC object
I #660 Uec Received ipc data from mue
I #660 Uec Processing progress information
X #660 Uec Invoking Progress with ProgressEvent " 3" ProgressStep " 12" ProgressMax " 0" Message " Downloading avvdat-7776.zip.
X #660 Uec found event listener
I #660 Updater Downloading avvdat-7776.zip.
注意： 在此情况下，同时
77757776avv.gem 请求和
avvdat-7776.zip 。此操作意味着增量文件
77757776avv.gem 无法合并到 dat 中。此行为是意外的，因为所有增量 DAT 更新文件均可用，但更新仍默认为下载完整
avvdat (.zip) 文件。
