MOM 2005,Unable to deploy the agents from the MOM server using Push installation method

Problem
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Unable to deploy the agents from the MOM server using Push installation method

Solution
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The user has access, it appears to be a DCOM issue.
This server have been disable this check box.
1. Run\dcomcnfg\Component Services\Computers\My Computer\Properties

2. on "Default Properties" tab, we need check "Enable Distributed COM on this computer“

3. After check this function we need to reboot server to effect.