Hello, Thanks! I already tried this but without success: (I thought the wrapper? script you were speaking of was something else)! - First test, exactly as you say, with the registry key "Mailers"="/usr/bin/seamonkey_wrapper": Code: #!/bin/sh seamonkey -mail $@ - Second test: Code: #!/bin/sh seamonkey -mail "$@" Every time, I get Seamonkey browser with untitled tab. - Third test: Code: #!/bin/sh seamonkey -mail This time I get Seamonkey mail main window. => xerrs.log (1, 2, 3): > wine: cannot find L"C:\\windows\\system32\\mailto:argolance@xxxxxxx" > Unrecognized URL: mailto:argolance@xxxxxxx I tried something else: Code: #!/bin/sh seamonkey -mail and: Code: "Mailers"="/usr/bin/seamonkey_wrapper "%1"" Nothing happens! We are not far from the solution, I think... Sorry to abuse. Regards