http://www.zwsoft.com/forum/viewthread.php?tid=2223 Hey guys, nice work on the new ZWCAD interface. I'm not sure this is a real problem but when loading ZWCAD+ my Norton antivirus treated the following file as a "malicious" one and deleted it.File : zwdbg.dll The file is associated to [font=arial, helvetica, sans-serif][size=1.3em]Suspicious.Cloud.7.F [/size][/font]which is considered some kind of a virus I guess and the action was "file deleted" Norton also indicates that the use in the community is unknown and the risk is high. Back to the board now to continue playing with the PLUS... Rgds, Sergio sdiazi7729 2012-06-23 08:50:58 http://www.zwsoft.com/forum/viewthread.php?tid=2223&pid=15175 Hello sir, thanks for the feedback. ZWCAD+ is clean and safety, you can use it without worrying about virus.So I suggest you DO NOT delete any file in ZWCAD+ since that might cause some unknown problem. We will contact some big anti-virus software provider to make ZWCAD+ authorized soon. huangy8949 2012-06-25 10:30:18