What is "Power Archiver"? [Are you referring to PowerArchiver Outlook
Plug-in (http://www.powerarchiver.com/paop/ and is your question about MS
Outlook?]

If Outlook *Express* is to be your default Mail Client:

1. http://www.oehelp.com/oedef.aspx; then...

2. http://www.oehelp.com/oelnk.aspx

If still no joy, see:

SendTo and E-mail Links Do Not Work Using Outlook Express as Default
http://support.microsoft.com/?kbid=306098
--
~Robear Dyer (PA Bear)
MS MVP-Windows (IE/OE, Shell/User, Security), Aumha.org VSOP, DTS-L.org


DEF wrote:
> "Either there is no default mail client or the current mail client cannot
> fulfill the messaging request" error message when trying to compress and
> e-mail with Power Archiver