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Problem with corrupt installer is likely an incomplete or corrupt download.
APIs are located here: http://www.esri.com/apps/products/download/index.cfm?fuseaction=download.all
Was this for ArcGIS API for Silverlight v3.0, or v2.4?
Here are my generated MD5 HASH values for both downloads--suggest you first check yours against them. And if need be, download again and try a new copy of the installer.
[INDENT]ArcGISAPI30forSilverlight.exe - v3.0 ~7.09MB, MD5 hash: 2100474be919c12534f224184a57986c
ArcGISSilverlight24.exe - v2.4 ~4.39MB, MD5 hash: d63d81fb4e67467d0af7e928d043601e[/INDENT]
Thanks for your reply.
I downloaded version 2.4 and v3.0 but both had that error.
How do I check on the md5 on the downloaded files?
The md5 check using md5.exe check utility generated CDD8EEDBC25CCDB9ECA058B469D5D610 which is different from what you pasted for the version 2.4.
How do I get the correct version?
Not an Esri published MD5 hash, rather one I generated following download of the two API installers. Downloaded on two different systems on two different networks, the MD5 hash match so I know each is a clean copy of what Esri is providing.
It is possible that your download attempts are coming from a different distribution portal--and could possibly have a different hash. For myself when downloading, my downloads originate from a "HTTP - Redlands CA USA" location, take notice of the download server location (see attached).
If your download server shows the location as from the Redlands CA USA portal --then you should expect to receive the same download that I receive, and that the hash values (yours and mine) will match if not corrupt. If a different location then there is potential that it is a slightly different package build and would have a different MD5 hash. In that case, try to run the download from another system, preferably another network ISP, and see if the MD5 hash values match when both come from the other download server location.
If not from the same server location as mine, but you receive consistent MD5 hash value for the downloads on different systems, the package posted could be corrupt. And you may need to contact your Esri distributor for assistance in obtaining an uncorrupted installer for the API.
I was able to get the correct download from a different machine. I think the issue is that I was using a download manager which corrupted the files I downloaded from Esri.
Thank you so much for your help.
Thanks and regards,