WinZip is OK, I have it and use it to unzip files (or zip files), but I wouldn't be compressing (zip) the hard drive (if that is what you did) as it can cause a lot of problems and slower operation.   I have no idea what or where that 'Shanghai Development Center' came from.  Can't answer that.   The SigmaTel driver on the Dell downloads is the only one.  The entire Dimension line has been discontinued at least 5 years ago and there will never be any newer Dell drivers.  I have a Dimension E510 (5150) from the same era.
Hi   I am receiving an error message   Cannot Access IDT PC Audio which seems to come from 'Shanghai Development Centre'   All my audio is dead.   Anyone had this problem ?   Is there a fix ?
Windows Xp SP3 IDT PC Audio Problem / Dimension 9200