Filtered Lookup in MS CRM 4.0(转)

MS CRM 4.0 does not provide filtered lookup facility, but we have some couple of options that we can use to implement filtered lookup in ms crm 4.0 like

1. Change lookupsingle.aspx page

                 http://crm.georged.id.au/post/2008/02/16/Filtering-lookup-data-in-CRM-4.aspx

      2. Buy stunware filtered lookup tool

             http://www.stunnware.com/default.aspx?area=products&group=fld4&subarea=fld4-download

       3. Using JS Code

                 http://advantageworks.blogspot.com/2008/02/pseudo-filtered-lookup-dialog-in.html

        4. Writing plugin.

                 http://mscrmfilteredlookup.codeplex.com/