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Convert UINT64 to usable string in ASP (Win32_PerfRawData_PerfOS_System - SystemUpTime)

Posted on 2008-10-29
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Last Modified: 2012-03-15
I was using Win32_PerfFormattedData_PerfOS_System - SystemUpTime to determing how long a server had been online, unfortunately that doesn't exist in Server 2000.  So, I decided to use Win32_PerfRawData_PerfOS_System.  However, the number is like 128697836904361421 and I have no idea how to convert that to anything useful.  I did discover it's uINT64, but that doesn't help me any...

How do I make this useful? What kind of math do I need to convert it to seconds?
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Question by:Cerixus
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rejoinder earned 500 total points
Comment Utility
You can try this code to see if it fits your needs.  

I check the LastBootTime of the Win32_OperatingSystem object to get the date.  From there, I check the OS to see if it is running Windows 2000.  If so, the script uses the function "ConvWMI2VBS" to convert the date while other systems are converted using the function "WMIDateStringToDate"
'http://www.experts-exchange.com/Programming/Languages/Visual_Basic/VB_Script/Q__23859663.html
 

strSrv = "SERVERNAME"

set objSvc = GetObject("winmgmts:{impersonationLevel=impersonate}//" & StrSrv & "/root/cimv2")

set objRet=objSvc.InstancesOf("win32_OperatingSystem")

for each item in objRet

    if item.LastBootUpTime <> "" then

        if InStr(item.caption, "2000") then

            LastBootTime = ConvWMI2VBS(item.LastBootUpTime)

        else

            LastBootTime = WMIDateStringToDate(item.LastBootUpTime)

        end if

    else

        LastBootTime = "The script was unable to check the last known boot time."

    end if

next
 

wscript.echo LastBootTime
 

'******************************

'* Convert Date Function *

'******************************
 

Function ConvWMI2VBS(strDate)

    'will return mm/dd/yyyy

    Set objSWbemDateTime = CreateObject("WbemScripting.SWbemDateTime")

    objSWbemDateTime.Value = strDate

    ConvWMI2VBS = objSWbemDateTime.GetVarDate(False)

End Function
 

Function WMIDateStringToDate(dtmBootup)

    'will return mm/dd/yyyy

    WMIDateStringToDate = CDate(Mid(dtmBootup, 7, 2) & "/" & Mid(dtmBootup, 5, 2) & "/" & Left(dtmBootup, 4) & " " & Mid (dtmBootup, 9, 2) & ":" & Mid(dtmBootup, 11, 2) & ":" & Mid(dtmBootup, 13, 2))

End Function

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by:Cerixus
Comment Utility
Other than the fact that the month/day were switched on the 2003 servers, this worked perfectly!  :)
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