To run winflock.exe: C:\> winflock.exe -d (dir) > verbose.log By default, there a lot of logging generated to stdout while the actual test results are reported to stderr. Redirecting stdout to a log file cleans out the output. The directory specified by (dir) must exist. This is where the test files will be created and tests run against. Eg: winflock.exe -d \\afs\athena.mit.edu\user\a\s\asanka\test > verbose.log