.CRT file extension

This is the basic program to work with .CRT extension

Yahoo! Internet Mail

Yahoo! Internet MailSecurity Certificate

The program works with the following extensions: zip, jpg, wmf, bmp, png, gif, jpeg, udl, url, p7r, ivf, cat, p7s, crd, cer, cnf, prf, tvp, crl, qds, crt, rat, cdf, der, shb, uea, dib, shs, dun, sst, emf, stl, tif, jpe, crds, ueaf, jfif, tiff, theme, msstyles, appref-ms and slupkg-ms

.CRT extension is also supported by the following programs:

USB Product Driver

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Belarc Advisor

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Professional Notepad

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KUSBDTII & II+Security Certificate