need a client wgwin.exe, when any user run it at client pc, it take update/patches/service pack from its respective eScan parent/child server not from direct internet.
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client_wgwin.exe required, because some time it is not possible to run esupdate/epatch to every pc by using emc specially any remote branches or child servers. eScan parent/child server dont deploy automatically esupdate/epatch to client. so its requited manual process to update any eScan service pack/update. so any smart end user can update his/her pc by using this client_wgwin. he/she may become free from virus and any eScan bug.