AppData ... where kept?

I have installed MailwasherPro (a mail pre-filtering programe) on Vista
Business.

The installation, (as an admin) went OK, and the programme installed and
running OK.

However, when I try to save some filters (from an installation on Win
XP) Vista complains:

"Could not save the blacklist file (this includes the friends list).
Cannot create file:
C:\Users\<myname>\AppData\Roaming\MailwasherPro\bl acklist.txt)"

I tried to look for folder AppData\Roaming\... but drew a blank.

Where are Application data kept in Vista? Why does a search for
'AppData' folder come up blank?

Thansk for any pointersfolder

occam wrote:
> I have installed MailwasherPro (a mail pre-filtering programe) on Vista
> Business.
>
> The installation, (as an admin) went OK, and the programme installed and
> running OK.
>
> However, when I try to save some filters (from an installation on Win
> XP) Vista complains:
>
> "Could not save the blacklist file (this includes the friends list).
> Cannot create file:
> C:\Users\<myname>\AppData\Roaming\MailwasherPro\bl acklist.txt)"
>

OK, found the blacklist.txt file -- it is already there. However Vista
is still complaining
"Access denied (EFCreate error)"

What is EFCreate error?