If you have checked that there are no earlier Sniffer10G dependencies ( tasklist /m snf.dll is empty ), please send us the log obtained by adding /log filename to the MSI install. e.g
c:\> snf-2.0.6.50271_x64_wnet_wlh.msi /log snf_install_log.txt
Please also read: My Sniffer10G MSI installation fails with an ambiguous message about not finishing as expected. How do I resolve this issue?
Note: If you are trying to uninstall the MSI, please use the Repair MSI option on your installation, and then proceed with the Uninstall.