vbs isMember script - Active directory check

Have you copied the whole function in your VBS script?
Also, according to the article the usage of this function is as follows:

'Create an Active Directory object
Set objADSystemInfo = CreateObject("ADSystemInfo")

'Create an object for the current user
Set objADUser = GetObject("LDAP://" & objADSystemInfo.UserName)

'Check whether objADUser is a member of Group SS64
If (IsMember(objADUser, "SS64") = True) Then
  WScript.Echo "You are a member of the group"
End If

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Basically, you need to initialise objADUser variable for the current user (which the first two lines do). If you really want to call the function with one argument then create a new function, like this:

Function IsMeAMember(ByVal strGroupNTName)
  ' Function to test for group membership.
  ' strGroupNTName is the NT name (sAMAccountName) of the group to test.
  ' Returns True if the current user is a member of the group.
  'Create an Active Directory object
  Set objADSystemInfo = CreateObject("ADSystemInfo")

  'Create an object for the current user
  Set objADUser = GetObject("LDAP://" & objADSystemInfo.UserName)
  IsMeAMember = IsMember(objADUser, strGroupNTName) 
End Function

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Then the usage will be as simple as yours:

IF isMeAMember ("groupName") then
    do this
Else
    do this
End IF

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Remember, you must still include the code for IsMember and IsMeAMember in your vbs file (they can be put in your file at the en, after your main function)

hey... thanks for replying...
i ran the following code

Function IsMeAMember(ByVal strGroupNTName)
  ' Function to test for group membership.
  ' strGroupNTName is the NT name (sAMAccountName) of the group to test.
  ' Returns True if the current user is a member of the group.
  'Create an Active Directory object
  Set objADSystemInfo = CreateObject("ADSystemInfo")

  'Create an object for the current user
  Set objADUser = GetObject("LDAP://" & objADSystemInfo.UserName)
  IsMeAMember = IsMember(objADUser, strGroupNTName) 
End Function


IF isMeAMember ("GROUPNAME") then
    wscript.echo "i am a member"
Else
    wscript.echo "i am here"
End IF

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and i got a type mismatch at isMember

Have you put the code for IsMember function from the link you have provided? To re-iterate, you need to also include this function:

Function IsMember(ByVal objADObject, ByVal strGroupNTName)
  ' Function to test for group membership.
  ' objADObject is a user or computer object.
  ' strGroupNTName is the NT name (sAMAccountName) of the group to test.
  ' objGroupList is a dictionary object, with global scope.
  ' Returns True if the user or computer is a member of the group.
  ' Subroutine LoadGroups is called once for each different objADObject.

    Dim objRootDSE, strDNSDomain

  ' The first time IsMember is called, setup the dictionary object
  ' and objects required for ADO.
    If (IsEmpty(objGroupList) = True) Then
        Set objGroupList = CreateObject("Scripting.Dictionary")
        objGroupList.CompareMode = vbTextCompare

        Set adoCommand = CreateObject("ADODB.Command")
        Set adoConnection = CreateObject("ADODB.Connection")
        adoConnection.Provider = "ADsDSOObject"
        adoConnection.Open "Active Directory Provider"
        adoCommand.ActiveConnection = adoConnection

        Set objRootDSE = GetObject("LDAP://RootDSE")
        strDNSDomain = objRootDSE.Get("defaultNamingContext")

        adoCommand.Properties("Page Size") = 100
        adoCommand.Properties("Timeout") = 30
        adoCommand.Properties("Cache Results") = False

        ' Search entire domain.
        strBase = "<LDAP://" & strDNSDomain & ">"
        ' Retrieve NT name of each group.
        strAttributes = "sAMAccountName"

        ' Load group memberships for this user or computer into dictionary
        ' object.
        Call LoadGroups(objADObject)
        Set objRootDSE = Nothing
    End If
    If (objGroupList.Exists(objADObject.sAMAccountName & "\") = False) Then
        ' Dictionary object established, but group memberships for this
        ' user or computer must be added.
        Call LoadGroups(objADObject)
    End If
    ' Return True if this user or computer is a member of the group.
    IsMember = objGroupList.Exists(objADObject.sAMAccountName & "\" _
        & strGroupNTName)
End Function

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closing as this is a old issue which has now been resolved.

do not remember if we ended up using this code.