Again you have not mentioned your Integrity Version.
Cisco client version 4.8.00.0440 is the only supported version for 6.5.
Recommendation installation order is, install Integrity client, then install Cisco Client with the NOVSDATA option.
Here are some additional details regarding the NOVSDATA
1. Uninstall Integrity
2. Uninstall Cisco VPN
3. Run CPClean
Check Point Software: Support & Troubleshooting Tools 4. Disable any Anti-Virus Software then follow the procedures below:
5. install Integrity Client, then
5. Install Cisco VPN w NOVSDATA option
Check Cisco VPN readme file for details.