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Is there any way I can find out what's the current value or file size limit of UploadReadAheadSize for IIS on windows server 2003.

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closed as off-topic by Eric Alexander Aug 15 '15 at 0:52

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Server questions not specific to SharePoint are off-topic here, but can be asked on ServerFault." – Eric Alexander
If this question can be reworded to fit the rules in the help center, please edit the question.

Please note that the second option on this page does not work in II6 (Windows 2003). Apparently there is no appcmd file in IIS6. This file is a feature of IIS7 (Windows 2008) and newer Windows server OSs. – user45122 Aug 14 '15 at 20:45

you cant access it as there is no interface to get the value, the default value is 48kb I belive.

if its related to you uploading a file, the default size limmit is set to 50mb by default.

These settings (default settings) have been inplace for DOS attack i think hence why they are small in size! There are a couple of ways you can change it if a third party needs to use it that you need it to....

for this you need to change the metabase to a higher values like so:

you need to use Adsutil with the following script:

Adsutil set w3svc/uploadreadaheadsize "100000000"

it sets it to 100mb


open cmd

add this command cd.. untill you get to the root c://

add this cd c:\Windows\systems32\inetsrv

then add the following command:

appcmd set config "My Site/MyApp" -section:requestFiltering -requestLimits.maxAllowedContentLength:104857600 -commitpath:apphost

or add the following to app.config

        <requestLimits maxAllowedContentLength="65535" />

Or you can use this third party app to see the values ;)

hope it helps :)

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iv ammended the answer to contain a thirdparty app to lookup the values for you – ali Sharepoint Sep 26 '12 at 10:40
up vote 2 down vote accepted
adsutil get w3svc/UploadReadAheadSize

Above command worked for me and thats what I was looking for.

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