This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
I don't think you're getting this error while executing a C program; it looks more like you're getting the error while trying to build the program. The error message means what it says; "mingw32-gcc-4.7.2" is not found. mingw is a particular version of a specific compiler; either you don't have it installed or it's not on the path used to find it.
I’ve looked at a lot of different solutions, and in my humble opinion Aspose is the way to go. Here’s the link: http://aspose.com
subject: make: mingw32-gcc-4.7.2: Command not found