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Reference.org
Netscape Portable Runtime
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<p>The Netscape Portable Runtime, or NSPR, is a cross-platform <a href="/facts/Abstraction_layer/EV8c84SY">abstraction layer</a> library for the <a href="/facts/C_programming_language/Ky2No763">C programming language</a>. It provides a uniform <a href="/facts/API/GMlN4vUr">API</a> for various operating system functions. </p>