Sort numbers in strings

[Lucas]

Thanks, but the result is:

ab1234/3:1
ab1234/3:10
ab1234/3:9
bc3234/2:2
bc3234/2:3
ch8218/5:2

and it should be:

ab1234/3:1
ab1234/3:9
ab1234/3:10
bc3234/2:2
bc3234/2:3
ch8218/5:2

note 1: 9 before 10
note 2: This computer (W2000).