Image Insert Doubt

Dear Vishal,                I have posted a doubt regarding image insert into
Postgres.  Thanx for ur valuable information. I am new to
Postgres/Linux Environment.
Intially i thought it would be better to store image path into DB.
Later i changed my idea. Since it will be difficult/Tedious to backup
both DB and Image folder. From Windows application how i can access a
folder in Linux and save my image data there. I have configured a
folder via Samba Server.
Its asking user name password when i first access the folder. Is it
can be avoided. My Second doubt is I want dump DB from my windows
client application, 'pg_dump' command with additional parameters not
working. but its working from server. how is this possible.
Sreejith