It should be good. It will not catch token like ".NET4.0C", but I was not able to...
Probably a better one will be: my $regvermsie11 = qr/trident\/7\.\d*\;([+_ ]|)([\w\.]+\;([+_...
Probably a better one will be: my $regvermsie11 = qr/trident\/7\.\d*\;([+_ ]|)((\w\.)+\;([+_...
Probably a better one will be: my $regvermsie11 = qr/trident\/7\.\d*\;([+_ ]|)(\w+\;([+_...
IE11 detection not always working