ProCheck 2.3 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The program relates to Home & Hobby Tools. The following version: 2.3 is the most frequently downloaded one by the program users. Commonly, this program's installer has the following filename: ProCheck.exe. This free software was originally created by EBI.
From the developer:
PROCHECK checks the stereochemical quality of a protein structure, producing a number of PostScript plots analysing its overall and residue-by-residue geometry. It includes PROCHECK-NMR for checking the quality of structures solved by NMR. PROCHECK is available free.
You may want to check out more software, such as Encyclopaedia Homeopathica, Water Test or Subliminal Message Flash, which might be related to ProCheck.