Does anyone know how I would go about making a routine to allow a user to pick a certificate from a list of all the certificates installed on the machine, preferably some form of treeview such as:

+ LOCAL_MACHINE
- CURRENT_USER
+PERSONAL
+TRUSTED_CERTIFICATE_AUTHORITIES
etc...

Some people may recognise this as being very similar to a tool found in the MMC. I don't have a clue where to start regarding this and the only relevant solution I've found is to pay for a Chilkat module... and where price is something I'd obviously want to avoid my real aim is to program this project entirely myself so i really want to avoid any third party products.