Upgraded an InstallShield 2012 project to 2014. I am experiencing a custom action failing with a return value 3 on two XP machines but it works on a Windows 7 and a 2008R2. The custom action is written in C++ and we've been using it without incident for many years. One difference is the custom action code has been upgraded from VS2008 to VS2012. I've suspected a VS2013 dependency exists but dependency walker does not show any such dependencies. Any thoughts on what could be happening is most appreciated.
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