Hi,
try to deploy KAV 6.0.3.837 & Network Agent 6.0.1591 from admin kit to one WinXP SP2 workstation but failed with below errors;

network agent task ; Kaspersky Network Agent (6.0.1591): Remote installation failed on the host: Installer error: -3 (Required data not found in the Setup.iss file (i.e. unexpected dialog appeared).)

workstation task ;
1) Kaspersky Anti-Virus 6.0 for Windows Workstations (6.0.3.837): Remote installation failed on the host: Fatal error during installation. (You must restart your computer before proceeding with the installation.)
2) Kaspersky Anti-Virus 6.0 for Windows Workstations (6.0.3.837): Remote installation failed on the host: Fatal error during installation.


delete avp6_post_uninstall under registry key & re-install .Net framework won't help