plesk installation problem / ms ftp

[the_simple_life]

hello

i have an windows 2003 server with iis 6.

i want install plesk 7.0.2.
the i started the exe ...plesk check the system...and he said.. ms ftp not installed..

but wen i look in my system..it sayed ftp service installed..

is ms ftp an another software? what must i do to install it?

thx