Downloads corrupting from Unix server

We've been having a lot of customers lately that get a "file is corrupted" error when trying to launch our exe after downloading it from our Unix server.  The exe is 153 MB in size and the error only occurs when the customer's connection is either dial-up or they have a slow DSL\cable connection.  I've tested the download from my house (which has a 1 MB download) and cannot duplicate the issue.  Any ideas on what could cause this or how we can ensure that it doesn't get fragmented over the Internet when it's being downloaded?
CoastalcomputerAsked:
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mikelfritzCommented:
How are they downloading? ftp?

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yuzhCommented:
If they use FTP, you need to make sure transfer file in binary mode.

and you you zip/gzip the file for the end user to download.

If they use  a wen browser to download, please read :
"Corrupted Downloads What Is to Be Done?"
http://www.fourmilab.ch/documents/corrupted_downloads/
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omarfaridCommented:
If they are using web browser to download files then it could be a problem in the mime type in the browser.
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gheistCommented:
Firewall in the middle drops TCP connection after some preset time.
They can use download manager like "Free Download Manager" for better results.
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CoastalcomputerAuthor Commented:
I'll check with the company that handles it to see if it's set up as an FTP.  I'll post their response later on today.
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CoastalcomputerAuthor Commented:
Thanks for the help.  It turns out that it was a combination of the customers using IE and the firewall causing drops.  We're going with a download manager to help solve the issue as well as encouraging users to use FireFox instead of IE.
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