IIS CGI with ReadFile

i am having a problem with a legacy CGI application written in C/WINAPI

it essentially is a notification callback to receive google checkout notifications as an HTTP upload (application/xml)

it is working for the most part and when i use a simple test program it works fine as well but when google sends larger xml files (more than 1K) i get the proper content length but read file doesnt return all the bytes.

if i send the same file from my test program it all works fine.

tried all kinds of things but am running out of ideas

Anyone has any idea what i can look for?

thanks

Mike

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Originally Posted by starzen

Anyone has any idea what i can look for?

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Source code for that application. Most certainly it uses some 16-bit programming concepts that cause a memory restriction. If the code is not proprietary post it here and someone will take a look at it.