1. Download *.zip or *.7z archive, extract anywhere on your computer.
2. Launch *.exe, click Options, select all checkboxes on Associations tab.
	After that you can 
		a) double click *.md5, *.sha, *.sha1, *.sha256, *.sha512 files and
		b) copy hash to clipboard, select any file you want to verify and from context menu select "Compare to hash in clipboard"

Changelog:

1.0.0.0 can check different hashsum files (sfv, md5, sha1 - sha512) and check hash from clipboard

1.0.0.1 - Better error handling