有个UnLoockHST.jsxbin 文件就是破解
Place UnLoockHST in C:\Program Files\Adobe\Adobe After Effects CC 2017\Support Files\Scripts
step 2: start AE
atep 3: Run UnLoockHST, from file,
step 4: run Handy Seamless Transitions, it should be cracked now
step 5: delete UnLoockHST(not needed anymore)