When performing a remote install, the following error message appears even when the remote registry service on the Windows 7 side has been manually started:
To install on a remote computer, use an account with administrator privileges. If the target computer is running Windows XP Home or Vista Basic, remote installation cannot proceed because there is no remote registry service on these platforms.
Only the built-in administrator account can perform a remote install. If the account is disabled, use the command below to enable it:
net user administrator /active:yes
On a Windows Active Directory environment, administrators with domain administrator privilege can remotely install OfficeScan clients on Windows 7 platform.
If you encounter problems using this deployment procedure, refer to this Microsoft article: Enable and Disable the Built-in Administrator Account.
To check the Windows account, refer to the Troubleshooting Guide for OfficeScan client installation issues.