I Unzipped 7za465.Zip to C:\Utils folder as suggested by you.After that i just went to zip the file manually but it didn't happened.From download i was having 7z465.exe ,I installed then it got installed in path
C:\Program Files\7-Zip after that i tried zipping file manually i succeeded but through query i failed once again..
Do you have skype Id ? If please send to me,As there is no Experienced DBA in my way.So that I can learn from you