朋友搞了個手機主題下載站，主題文件格式下載老是出錯，會變成ZIP后綴，很是郁悶。多方查詢，原來是IIS的MIME設置錯誤。

常見的手機主題格式MIME類型應為：
.cab application/vnd.smartpohone
.jad text/vnd.sun.j2me.app-descriptor
.jar application/java-archive
.nth application/vnd.nok-s40theme
.sis application/vnd.symbian.install
.sisx application/vnd.symbian.install
.thm application/vnd.eri.thm
.wgz application/x-nokia-widget