The 4.1 version of XPSPEAK is available as a free download on our website. XPSPEAK41.exe or XPSPEAK.exe are the default file names to indicate the XPSPEAK installer. The program lies within Multimedia Tools, more precisely General. This free program is an intellectual property of Raymund Kwok. The most popular version of the program is 4.1. The latest version of XPSPEAK can be installed on PCs running Windows XP/Vista/7/8/10, 32-bit.
From the developer:
Free, fully featured, software for the analysis of XPS spectra written by Raymund Kwok.XPSPeak is a XPS Peak Fitting Program.The portable app creates a sandbox folder in its current location, where it stores all its settings and temporary files. Can be downloaded from the US, UK or Hong Kong.
You may want to check out more software, such as iriver plus, MADRIX or AEON, which might be related to XPSPEAK.