After you added the words to the .dict file, did you save and close the .dict file? Dict Manager does not automatically save.
If you type in a word that is in the dictionary, is it underlined as an error or not? If it is underlined then it means the dictionary is not working at all.
I don't know if it matters but your path should be "D:/wordlist.Dict" or "D:\\wordlist.Dict"
You're welcome to send the .dict file to me via support @ keyoti.com and I will test it out.
-Harry
-Harry