'chm'=>'application/octet-stream',

'ppt'=>'application/vnd.ms-powerpoint',

'xls'=>'application/vnd.ms-excel',
'doc'=>'application/msword',
'exe'=>'application/octet-stream',
'rar'=>'application/octet-stream',
".001"="application/x-001"
".323"="text/h323"
".907"="drawing/907"
".acp"="audio/x-mei-aac"
".aif"="audio/aiff"
".aiff"="audio/aiff"
".asa"="text/asa"
".asp"="text/asp"
".au"="audio/basic"
".awf"="application/vnd.adobe.workflow"
".bmp"="application/x-bmp"
".c4t"="application/x-c4t"
".cal"="application/x-cals"
".cdf"="application/x-netcdf"
".cel"="application/x-cel"
".cg4"="application/x-g4"
".cit"="application/x-cit"
".cml"="text/xml"
".cmx"="application/x-cmx"
".crl"="application/pkix-crl"
".csi"="application/x-csi"
".cut"="application/x-cut"
".dbm"="application/x-dbm"
".dcd"="text/xml"
".der"="application/x-x509-ca-cert"
".dib"="application/x-dib"
".doc"="application/msword"
".drw"="application/x-drw"
".dwf"="Model/vnd.dwf"
".dwg"="application/x-dwg"
".dxf"="application/x-dxf"
".emf"="application/x-emf"
".ent"="text/xml"
".eps"="application/x-ps"
".etd"="application/x-ebx"
".fax"="image/fax"
".fif"="application/fractals"
".frm"="application/x-frm"
".gbr"="application/x-gbr"
".gif"="image/gif"
".gp4"="application/x-gp4"
".hmr"="application/x-hmr"
".hpl"="application/x-hpl"
".hrf"="application/x-hrf"
".htc"="text/x-component"
".html"="text/html"
".htx"="text/html"
".ico"="image/x-icon"
".iff"="application/x-iff"
".igs"="application/x-igs"
".img"="application/x-img"
".isp"="application/x-internet-signup"
".java"="java/*"
".jpe"="image/jpeg"
".jpeg"="image/jpeg"
".jpg"="application/x-jpg"
".jsp"="text/html"
".lar"="application/x-laplayer-reg"
".lavs"="audio/x-liquid-secure"
".lmsff"="audio/x-la-lms"
".ltr"="application/x-ltr"
".m2v"="video/x-mpeg"
".m4e"="video/mpeg4"
".man"="application/x-troff-man"
".mdb"="application/msaccess"
".mfp"="application/x-shockwave-flash"
".mhtml"="message/rfc822"
".mid"="audio/mid"
".mil"="application/x-mil"
".mnd"="audio/x-musicnet-download"
".mocha"="application/x-javascript"
".mp1"="audio/mp1"
".mp2v"="video/mpeg"
".mp4"="video/mpeg4"
".mpd"="application/vnd.ms-project"
".mpeg"="video/mpg"
".mpga"="audio/rn-mpeg"
".mps"="video/x-mpeg"
".mpv"="video/mpg"
".mpw"="application/vnd.ms-project"
".mtx"="text/xml"
".net"="image/pnetvue"
".nws"="message/rfc822"
".out"="application/x-out"
".p12"="application/x-pkcs12"
".p7c"="application/pkcs7-mime"
".p7r"="application/x-pkcs7-certreqresp"
".pc5"="application/x-pc5"
".pcl"="application/x-pcl"
".pdf"="application/pdf"
".pdx"="application/vnd.adobe.pdx"
".pgl"="application/x-pgl"
".pko"="application/vnd.ms-pki.pko"
".plg"="text/html"
".plt"="application/x-plt"
".png"="application/x-png"
".ppa"="application/vnd.ms-powerpoint"
".pps"="application/vnd.ms-powerpoint"
".ppt"="application/x-ppt"
".prf"="application/pics-rules"
".prt"="application/x-prt"
".ps"="application/postscript"
".pwz"="application/vnd.ms-powerpoint"
".ra"="audio/vnd.rn-realaudio"
".ras"="application/x-ras"
".rdf"="text/xml"
".red"="application/x-red"
".rjs"="application/vnd.rn-realsystem-rjs"
".rlc"="application/x-rlc"
".rm"="application/vnd.rn-realmedia"
".rmi"="audio/mid"
".rmm"="audio/x-pn-realaudio"
".rms"="application/vnd.rn-realmedia-secure"
".rmx"="application/vnd.rn-realsystem-rmx"
".rp"="image/vnd.rn-realpix"
".rsml"="application/vnd.rn-rsml"
".rtf"="application/msword"
".rv"="video/vnd.rn-realvideo"
".sat"="application/x-sat"
".sdw"="application/x-sdw"
".slb"="application/x-slb"
".slk"="drawing/x-slk"
".smil"="application/smil"
".snd"="audio/basic"
".sor"="text/plain"
".spl"="application/futuresplash"
".ssm"="application/streamingmedia"
".stl"="application/vnd.ms-pki.stl"
".sty"="application/x-sty"
".swf"="application/x-shockwave-flash"
".tg4"="application/x-tg4"
".tif"="image/tiff"
".tiff"="image/tiff"
".top"="drawing/x-top"
".tsd"="text/xml"
".uin"="application/x-icq"
".vcf"="text/x-vcard"
".vdx"="application/vnd.visio"
".vpg"="application/x-vpeg005"
".vsd"="application/x-vsd"
".vst"="application/vnd.visio"
".vsw"="application/vnd.visio"
".vtx"="application/vnd.visio"
".wav"="audio/wav"
".wb1"="application/x-wb1"
".wb3"="application/x-wb3"
".wiz"="application/msword"
".wk4"="application/x-wk4"
".wks"="application/x-wks"
".wma"="audio/x-ms-wma"
".wmf"="application/x-wmf"
".wmv"="video/x-ms-wmv"
".wmz"="application/x-ms-wmz"
".wpd"="application/x-wpd"
".wpl"="application/vnd.ms-wpl"
".wr1"="application/x-wr1"
".wrk"="application/x-wrk"
".ws2"="application/x-ws"
".wsdl"="text/xml"
".xdp"="application/vnd.adobe.xdp"
".xfd"="application/vnd.adobe.xfd"
".xhtml"="text/html"
".xls"="application/x-xls"
".xml"="text/xml"
".xq"="text/xml"
".xquery"="text/xml"
".xsl"="text/xml"
".xwd"="application/x-xwd"
".x_t"="application/x-x_t"
".myz"="application/myz"