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Enable Http Compression

, 18 May 2010
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A set of command line operations to enable and configure compression in IIS.
You can use compression in IIS to improve the response of your web site.
 
There are two implemented methods for compression:
    • Deflate
    • GZIP
 
Navigate to the AdminScripts directory in a command prompt window with administrative privileges. The default script host is wscript. For the purpose of this tip, switch to cscript with the following command
 
cscript.exe /h:cscript
 
The following commands will change various compression settings for IIS.
 
cscript.exe adsutil.vbs set W3svc/Filters/Compression/{GZIP|DEFLATE}/
{HcFileExtensions "StaticFileType" ...}|{HcScriptFileExtensions "DynamicFileType" ...}
 

Configure static compression

CSCRIPT.EXE C:\Inetpub\AdminScripts\ADSUTIL.VBS SET W3SVC/Filters/Compression/Parameters/HcDoStaticCompression TRUE
 
CSCRIPT.EXE C:\Inetpub\AdminScripts\ADSUTIL.VBS SET W3Svc/Filters/Compression/GZIP/HcFileExtensions "htm" "html" "js" "txt"
 
CSCRIPT.EXE C:\Inetpub\AdminScripts\ADSUTIL.VBS SET W3Svc/Filters/Compression/DEFLATE/HcFileExtensions "htm" "html" "js" "txt"
 

Configure dynamic file compression

CSCRIPT.EXE C:\Inetpub\AdminScripts\ADSUTIL.VBS SET W3SVC/Filters/Compression/Parameters/HcDoDynamicCompression TRUE
 
CSCRIPT.EXE C:\Inetpub\AdminScripts\ADSUTIL.VBS SET W3Svc/Filters/Compression/DEFLATE/HcScriptFileExtensions "asp" "asmx" "aspx"
CSCRIPT.EXE C:\Inetpub\AdminScripts\ADSUTIL.VBS SET W3Svc/Filters/Compression/GZIP/HcScriptFileExtensions "asp" "asmx" "aspx"
 

Set the compression level

CSCRIPT.EXE C:\Inetpub\AdminScripts\ADSUTIL.VBS SET W3Svc/Filters/Compression/GZIP/HcDynamicCompressionLevel "9"
CSCRIPT.EXE C:\Inetpub\AdminScripts\ADSUTIL.VBS SET W3Svc/Filters/Compression/DEFLATE/HcDynamicCompressionLevel "9"
 

Global compression settings

cscript.exe C:\Inetpub\AdminScripts\adsutil.vbs set w3svc/root/DoStaticCompression False
cscript.exe C:\Inetpub\AdminScripts\adsutil.vbs set w3svc/root/DoDynamicCompression False

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Tripathi Swati
Software Developer (Senior) RadixWeb India
India India
No Biography provided

Comments and Discussions

 
GeneralIIS 7 Performance Section PinmemberTheyCallMeMrJames18-May-10 3:47 
GeneralRe: IIS 7 Performance Section PinmemberTripathi Swati18-May-10 22:30 
Thanks James for giving your valuable input in this tip ...
Reasons are not Important but Results are Important.
http://www.sql4professional.blogspot.com
Swati Tripathi

GeneralRe: IIS 7 Performance Section PinmemberTheyCallMeMrJames19-May-10 3:01 

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