NIS will not install

Hi to all

Have recently purchased and tried to install NIS 2011 on a Dell desktop running XP home but have issues with the installation. The install starts OK and when it request you to enter and continue to install it starts then stops with a error stating " delete all files in the %tem% directory". I have tried and been successfull in deleteing all but 2 files ( tmp) which at this point still stop NIS 2011 from installing.

Any suggestions on deleteing these file or installing NIS would be great.

 

Ridge