Server Type	Threading Model	Main STA Access	Secondary STA Access	MTA Access	Global Variable Scope
ActiveX DLL or ActiveX Control	Single Threaded Apartment Threaded	Direct Direct	Proxy Direct	Proxy Proxy	Process-wide Thread-specific
ActiveX EXE	Thread Per Object	N/A	N/A	N/A	Object-specific
	Thread Pool (n==1)	N/A	N/A	N/A	Process-wide
	Thread Pool (n>1)	N/A	N/A	N/A	Thread-specific

Figure 4     Object Environments and Global Variables

Scenario	Share Global Variables?
Objects within a single MTS activity	Yes
Objects within different MTS activities	Sometimes
Objects created by a single Internet Explorer Web page	Yes
Objects created by distinct Internet Explorer Web pages in a single frameset	Yes
Objects created in distinct Internet Explorer top-level windows	No
Objects created on a single ASP page	Yes
Objects created on different ASP pages in the same session	Sometimes
Objects created on different ASP pages in different sessions	Sometimes

Figure 7   Object Initialization Routine

 Dim m_spgm as ISharedPropertyGroupManager
 Dim m_spg as ISharedPropertyGroup
 Dim m_spnSharedSum as ISharedProperty
 Dim m_spnAccesses as ISharedProperty
 Sub ObjectControl_Activate()
   Rem create a manager
   Set m_spgm _
       = New MTxSpm.SharedPropertyGroupManager
   Dim isoMode As Long, relMode As Long
   Dim bExists as Boolean
   isoMode = LockMethod
   relMode = Process
   Rem create (or open) lock 
   Set m_spg = _
     m_spgm.CreatePropertyGroup("MyGlobals", _
                     isoMode, relMode, bExists)
   Rem open references to each property
   Set m_spnSharedSum = _
      m_spg.CreateProperty("g_nSharedSum", bExists)
   Set m_spnAccesses = _
      m_spg.CreateProperty("g_nAccesses" , bExists)
 End Sub