My English is not good. K-meleon can set two profiles for multi-user. But one can only starup a k-meleon with a profile. Ater startup the k-meleon, if one clicks the k-meleon icon again, the k-meleon with another profile does not startup. Firefox can use "firefox.exe -no-remote -P user2" and "firefox.exe" to startup the user2 profile firefox and default profile firefox together.How to starup two k-meleon with different profiles together ?

Check the 'Command line options'. http://kmeleon.110mb.com/lizard/commands.html#l_cmdlineopt

Perhaps using -new and -p "Profile name" together.

Hanlon’s razor is an eponymous adage named after Robert J. Hanlon that states: “Never attribute to malice that which is adequately explained by stupidity.”

JamesD

Thank you very much.