How the Client works....
Once the Setup program is complete, the SCCM Advanced Client
obtains a site assignment, sends the heartbeat discovery information to the
SCCM site server, and then contacts the default management point to retrieve
the SCCM Advanced Client policy.
During the pre-installation phase, SCCM discovers the client
computer and then generates a client configuration request Client Configuration
Request file. The CCR file contains the client computer name and additional
information.)
The SCCM Client Configuration Manager connects to the ADMIN$
share on the client. This is based on the information in the CCR file.
The Client Configuration Manager connects to the client
registry and gathers information about the client. This process is displayed as
a log entry in the Ccm.log as connecting to IPC$.
The SCCM core component files, MobileClient.tcf and
Ccmsetup.exe, are located in the SMS\bin\I386\ folder. These files are
downloaded to the %windir%\System32\ccmsetup folder on the client computer.
The Client Configuration Manager verifies that the Ccmsetup
service started successfully before disconnecting. The CCR file is added to the
SMS\Inboxes\Ccrretry.box folder for verification that the installation
succeeded on the server. On a second verification pass, SCCM determines that
the SMS Agent Host is running, and then deletes the CCR file.
If the Client Configuration Manager encounters any errors
during this process, the CCR file is renamed to the name of the target client
computer and is put in the SMS\Inboxes\Ccrretry.box folder. The Client
Configuration Manager checks for files in this inbox folder every 60 minutes
and tries to reprocess them 168 times (7 days) before they are discarded. This
information is logged in the Ccm.log.
