Check Windows Last Update

Hi Guys,

there is an Error in your Script. If you set the warning ord critical date to for example 30 and 60 Days, the script will work until the days since last update is excactly 30 or 60 days. 31 or 61 or 29 or 59 will work.

You have to modify your if and elseif at the end to = insted of

See here the edited code snipped:

If DD >= updateTresholdCritical Then
Wscript.Echo "CRITICAL: Patches are not applied for the last " & DD & " days."
Wscript.Quit(intCritical)

ElseIf DD >= updateTresholdWarning Then
Wscript.Echo "WARNING: Patches are not applied for the last " & DD & " days."
Wscript.Quit(intWarning)

ElseIf DD =

This script works like a charm.
As promised it is very fast and solely takes a registry value instead of having windows search for updates (which almost always leads to a timeout).

There is only little glitch though:
When Windows was NEVER updated, the script will return an error stating that "CDate" cannot be created with a NULL value.

I fixed it by editing the script thusly (maybe if someone has a more reliable check for NULL, please feel free to add a it):

[Snippet starts at line 26 of check_win_lastupdate.vbs] ----------------------
strComputer & "\root\default:StdRegProv")
objReg.GetStringValue HKEY_LOCAL_COMPUTER, strKeyPath, strEntryName, strValue

'-----------------------------------
if IsNull(strValue) = -1 then
Wscript.Echo "CRITICAL: Patches have NEVER been applied!"
Wscript.Quit(intCritical)
end if
'-----------------------------------


InstallDate = CDate(strValue)
CurrentDate = CDate(Now)
[...]

----------------------------------------------

Thanks for the script :)