se cheama Smart Paster 1.1 Add-In
Are versiune de 1.1, are versiune de 2.0 si vine si cu cod sursa

Adresa:
http://weblogs.asp.net/alex_papadimoulis/archive/2004/05/25/Smart-Paster-1.1-Add-In—StringBuilder-and-Better-C_2300_-Handling.aspx

Mi-a folosit de minune!