Correction
The regular expressions in my previous post should have been
PS> "Richard" -match "R.*
True
PS> "Richard" -match "[A-Z].*"
True
PS> "Richard" -match "[R][ic]+.*"
True
The * of a wildcard has to be replaced by .* which means any character except a new line any number of times including zero.
Thanks to Jaykul for pointing out the error
Read the complete post at http://richardsiddaway.spaces.live.com/Blog/cns!43CFA46A74CF3E96!1886.entry