It is possible to create a link outside EasyStoreMaker PRO which will direct a user to a specific item or catalog inside your EasyStore. To accomplish this, you must first know the catalog number and product SKU number, if you intend to link to a specific item.
Your catalog numbers can be found under your "Catalogs" tab. Product SKU numbers can be found under the "Products" tab.
Example: If your product's SKU number is 1098789457, the catalog number is 10001, and your EasyStore is installed under the domain myeasystoredomain.com, a link to your product would be constructed as follows:
http://myeasystoredomain.com/cgi-bin/online/storepro.php?product=10001:1098789457
Similarly, if you only wanted to show a product listing for catalog number 10001, your link would be constructed as follows:
http://myeasystoredomain.com/cgi-bin/online/storepro.php?catalog=10001
Please note when you are linking to a catalog, you use "catalog=", not "product=".