Product reference encoding

[Kermy]

I'm needing to be able to encode the product references stored in ActinicCatalog.mdb so they appear as they do in the URL. For example, a hyphen inside a product reference becomes "_2d".

All the URLEncode functions I can find (I'm using ASP) encode to the "%.." format. Any ideas how I can achieve this in ASP? I could do a search and replace, but I cant find a list of characters and their encoded strings

[Kermy]

Turns out I had answered my own question. References are turned into hex codes but the leading % is replaced by an underscore (for some unknown reason).