Hello, Most open source software use PGP signature files for their verification. Therefore using tools like HashCalc become useless because they don't support PGP key strings, and I need to install GnuPG and GPGee. GPGee is used in conjunction with GnuPG and uses a explorer shell extension so files should be more easily verifiable. But non of these two techniques work for me, lets say I want to test the Truecrypt PGP signature for safety before usage http://www.truecrypt.org/downloads.php. What are you people using to check the integrity for these specific type of files?