Broken Download of Exe File

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http://serverfault.com – I have an Exe File Hosted on a shared hosting provider,Its around 20 Mb in size.The download normally works (99%) but some people are reporting incomplete downloads,i myself have experienced such issues rarely.I contacted the provider they tested on some machines and said all was okay.Now i have added a mirror offered by another provider now i noticed that the download from the mirror shows progress along with the total size of the file in Google chrome downloads section(Hope you got what i meant) but if i use the original link on my server the download only shows the amount of data downloaded (HowTos)