Alguém sabe corrigir esse erro na hora de upa imagens e ScreenShouts

Warning: is_file() [function.is-file]: open_basedir restriction in effect. File(C:\WINDOWS\Temp\php11E1.tmp) is not within the allowed path(s): (C:\Inetpub\vhosts\mu.com.br\httpdocs\) in C:\Inetpub\vhosts\mu.com.br\httpdocs\Site\modules\ classes\upload.class.php on line 24