For DP version 9.04 or greater, use push installation functionality for HF & SSP deployment as described in DP9.06 Installation Guide:
Chapter 6: Maintaining the installation ->
Managing Site Specific Patches and Hot Fixes
In summary,
1. copy the SSP or HF package to the Installation Server depot at the following location:
UNIX: /opt/omni/databases/vendor/ssphf
Windows: Data_Protector_program_data\depot\ssphf (For example: C:\ProgramData\Omniback\depot\ssphf)
Example of HF for windows : DP0906_b107_QCCR2A67152_QCCR2A67745_HF1_win.zip
So, on a windows cell manager/installation server, you copy DP0906_b107_QCCR2A67152_QCCR2A67745_HF1_win.zip to C:\ProgramData\Omniback\depot\ssphf
2. Verify if hotfix is listed
GUI> Client > Installation Servers> [your Cell Manager/Installation server hostname]> SSP / Hotfixes
3. Once listed, you can do remote(push) installation to the desired client
GUI> Clients> Clients> [select the client you want the HF to be installed] > Add component>
[ /] Install Site Specific Patch /Hotfix (select this option) , down arrow to scroll the hotfix
NOTE: To manually install the SSP/HF on clients please refer to the Installation guide.
4. Verify via "omnicheck -patches" on client