IIS 6 GZIP compression

For static files (such as html)

open a dos prompt and type:

cd %systemdrive%\Inetpub\AdminScripts
cscript.exe adsutil.vbs set W3Svc/Filters/Compression/GZIP/HcFileExtensions "htm" "html" "js" "css" "xml" "xlt"
cscript.exe adsutil.vbs set W3Svc/Filters/Compression/DEFLATE/HcFileExtensions "htm" "html" "js" "css" "xml" "xlt"
IISreset.exe /restart

For dynamic scripts (such as cfm) open a dos prompt and type:

cscript.exe adsutil.vbs set W3Svc/Filters/Compression/GZIP/HcScriptFileExtensions "cfm" "cfc"
cscript.exe adsutil.vbs set W3Svc/Filters/Compression/DEFLATE/HcScriptFileExtensions "cfm" "cfc"
IISreset.exe /restart