Error while displaying the date and grabbing the month from the date

[oylebirgecex]

By getting the date of my server, and when i trying to obtain the monthpart of the date , it gave this error.before tat i use window 7, it works fine. after upgrading to windows 8, it gave this error:strMonthPart = DatePart("m", strDate)12/19/2012 9:26:29 AM12/27/2012 9:26:29 AM19-12?-2012Microsoft VBScript runtime error '800a000d'Type mismatch: '[string: "19-12??-2012"]'