i am not sure maybe someone who knows embird could answer this i will go look also

i believe it is a plug in

You need to first purchase Embird (Manager/Editor), then Iconizer is, as Shirlene said, a Plug-in that you purchase/pay for, separately.
With Embird you can trial the program for 30 days or so many uses and when you download it you actually get EVERYTHING (to try) but to continue using it (after the trial period expires) you need to pay for the 'Plug-ins' to get the registration codes for each one.
Once you install the reg.codes you then have full use of the plug-ins you have paid for.
More info is available from the link below.
If you are even considering purchasing an embroidery program you can rest assured Embird is worth every cent and then some. hugs, M

What program are u running e.g. Vista or XP?

Sands computing-sew what, sew cat, sew art, has sew iconz, which is to be able to see through explorer, your designs. I have it on my list of wants, but haven't gotten it yet.
http://www.sandscomputing.com/id18.html (I'll try to put in a clickable link, the last time I did that, it didn't show up and what I said made no sense!

SewIconz is another option, which works the same as Iconizer but it is a stand alone program. $20US. You can download it and try it out for 7 days before deciding to buy it. I have it and it works very well.

I have Sewlconz, and it's wonderful! It's well worth the $20! *4U