When you purchase this sticker you will have the privilege to download and install this program. it's a batch file that will clean your IMVU client's cache to make it load faster. MAKE SURE THAT YOU CAN ACCEPT PRIVATE MESSAGES FROM ANYONE. so I can send you the Serial code to install IMVU Cache cleaner! (it can take up to 12 hours to get the serial, because I work mornings to evenings)