أكواد VB

لوسمحتم يا جماعة ساعدوني هذا كود لإرسال رسالة من الجوال و لكن لا أعرف كيف يعمل:

Dim SMS As Simplewire.SMS 
Dim carrier As Simplewire.SMSCarrier 
Dim Index As Integer 
' instantiate the the request 
Set SMS = New Simplewire.SMS 
' send off a carrier list request 
SMS.CarrierListSend 
' first off, we need to check if the req
'     uest was a success 
If SMS.Success = False Then 
' display the error description 
MsgBox SMS.ErrorDesc & " " & SMS.ErrorCode, vbCritical, "Carrier List Error" 
' kill the pager interfaces 
Set SMS = Nothing 
' stop the program 
End 
' otherwise, we have a valid response 
Else 
' resize PagerService array to make a pe
'     rfect fit 
ReDim SMSCarrierID(SMS.CarrierList.Count) 
ReDim SMSCarrierTextMaxLength(SMS.CarrierList.Count) 
' init the integer 
Index = 0 
' loop until the next service doesnt exi
'     st 


For Each carrier In SMS.CarrierList 
    ' set the new item on the combo box and 
    '     set the subtitle in the 
    .CarrierList.AddItem carrier.Title & " " & carrier.Subtitle 
    ' set the service id for the global serv
    '     ice id array 
    SMSCarrierID(Index) = carrier.ID 
    SMSCarrierTextMaxLength(Index) = carrier.TextMaxLength 
    ' increment the index 
    Index = Index + 1 
Next 
' init the list 
.CarrierList.ListIndex = 0 
End If 
' kill the sms object 
Set SMS = Nothing

وهذا كود لإستقبال المكالمات :

Private Sub Form_Load() 
MSComm1.Settings = "9600,N,8,1" 
' ??E ??EO??? ??? ?O?E ??C?? ???EI?C? ??? ???? C???I?? C????? 

For i = 1 To 10 
MSComm1.CommPort = i 

On Error GoTo N 
MSComm1.PortOpen = True 

N: 
If MSComm1.PortOpen = True Then 
Exit For 
End If 

Next 

End Sub 

Private Sub MSComm1_OnComm() 

If MSComm1.CommEvent Then 

MsgBox " ???? ?E?C? ?? " 

End If 


End Sub

وهذا كود لتفريغ الذاكرة

Dim f As Integer 
f = Forms.Count 
Do While f > 0 
Unload Forms(f - 1) ' 
If form isn't 
unloaded 
exit (User had canceled...)
If f = Forms.Count Then 
Exit Do f = f - 1 
Loop 
End

إذا سمحتم إعطوني شرحا و فيا لكل كود

و شكرا