End Function
Function DeleteKey(Keyname As String)

Call ParseKey(Keyname, MainKeyHandle)

If MainKeyHandle Then
   rtn = RegOpenKeyEx(MainKeyHandle, Keyname, 0, KEY_WRITE, hKey) ''''open the key
   If rtn = ERROR_SUCCESS Then ''''if the key could be opened then
      rtn = RegDeleteKey(hKey, Keyname) ''''delete the key
      rtn = RegCloseKey(hKey)  ''''close the key
   End If
End If

End Function

Function GetMainKeyHandle(MainKeyName As String) As Long

Const HKEY_CLASSES_ROOT = &H80000000
Const HKEY_CURRENT_USER = &H80000001
Const HKEY_LOCAL_MACHINE = &H80000002
Const HKEY_USERS = &H80000003
Const HKEY_PERFORMANCE_DATA = &H80000004
Const HKEY_CURRENT_CONFIG = &H80000005
Const HKEY_DYN_DATA = &H80000006
  
Select Case MainKeyName
       Case "HKEY_CLASSES_ROOT"
            GetMainKeyHandle = HKEY_CLASSES_ROOT
       Case "HKEY_CURRENT_USER"
            GetMainKeyHandle = HKEY_CURRENT_USER
       Case "HKEY_LOCAL_MACHINE"
            GetMainKeyHandle = HKEY_LOCAL_MACHINE
       Case "HKEY_USERS"
            GetMainKeyHandle = HKEY_USERS
       Case "HKEY_PERFORMANCE_DATA"
            GetMainKeyHandle = HKEY_PERFORMANCE_DATA
       Case "HKEY_CURRENT_CONFIG"
            GetMainKeyHandle = HKEY_CURRENT_CONFIG
       Case "HKEY_DYN_DATA"
            GetMainKeyHandle = HKEY_DYN_DATA
End Select

End Function

Function ErrorMsg(lErrorCode As Long) As String
   
''''If an error does accurr, and the user wants error messages displayed, then
''''display one of the following error messages

Select Case lErrorCode
       Case 1009, 1015
            GetErrorMsg = "The Registry Database is corrupt!"
       Case 2, 1010
            GetErrorMsg = "Bad Key Name"
       Case 1011
            GetErrorMsg = "Can''''t Open Key"
       Case 4, 1012
            GetErrorMsg = "Can''''t Read Key"
       Case 5
            GetErrorMsg = "Access to this key is denied"
       Case 1013
            GetErrorMsg = "Can''''t Write Key"
       Case 8, 14
            GetErrorMsg = "Out of memory"
       Case 87
            GetErrorMsg = "Invalid Parameter"
       Case 234
            GetErrorMsg = "There is more data than the buffer has been allocated to hold."
       Case Else
            GetErrorMsg = "Undefined Error Code:  " & Str$(lErrorCode)
End Select

End Function

Function GetStringValue(SubKey As String, Entry As String)

Call ParseKey(SubKey, MainKeyHandle)

If MainKeyHandle Then
   rtn = RegOpenKeyEx(MainKeyHandle, SubKey, 0, KEY_READ, hKey) ''''open the key
   If rtn = ERROR_SUCCESS Then ''''if the key could be opened then
      sBuffer = Space(255)     ''''make a buffer
      lBufferSize = Len(sBuffer)
      rtn = RegQueryValueEx(hKey, Entry, 0, REG_SZ, sBuffer, lBufferSize) ''''get the value from the registry
      If rtn = ERROR_SUCCESS Then ''''if the value could be retreived then
         rtn = RegCloseKey(hKey)  ''''close the key
         sBuffer = Trim(sBuffer)
         GetStringValue = Left(sBuffer, Len(sBuffer) - 1) ''''return the value to the user
      Else                        ''''otherwise, if the value couldnt be retreived
         GetStringValue = "Error" ''''return Error to the user
         If DisplayErrorMsg = True Then ''''if the user wants errors displayed then
            MsgBox ErrorMsg(rtn)  ''''tell the user what was wrong
         End If
      End If
   Else ''''otherwise, if the key couldnt be opened
      GetStringValue = "Error"       ''''return Error to the user
      If DisplayErrorMsg = True Then ''''if the user wants errors displayed then
         MsgBox ErrorMsg(rtn)        ''''tell the user what was wrong
      End If
   End If
End If

End Function

Private Sub ParseKey(Keyname As String, Keyhandle As Long)
   
rtn = InStr(Keyname, "\") ''''return if "\" is contained in the Keyname

If Left(Keyname, 5) <> "HKEY_" Or Right(Keyname, 1) = "\" Then ''''if the is a "\" at the end of the Keyname then
   MsgBox "Incorrect Format:" + Chr(10) + Chr(10) + Keyname ''''display error to the user
   Exit Sub ''''exit the procedure
ElseIf rtn = 0 Then ''''if the Keyname contains no "\"
   Keyhandle = GetMainKeyHandle(Keyname)
   Keyname = "" ''''leave Keyname blank
Else ''''otherwise, Keyname contains "\"
   Keyhandle = GetMainKeyHandle(Left(Keyname, rtn - 1)) ''''seperate the Keyname
   Keyname = Right(Keyname, Len(Keyname) - rtn)
End If

End Sub
Function CreateKey(SubKey As String)

Call ParseKey(SubKey, MainKeyHandle)

If MainKeyHandle Then
   rtn = RegCreateKey(MainKeyHandle, SubKey, hKey) ''''create the key
   If rtn = ERROR_SUCCESS Then ''''if the key was created then
      rtn = RegCloseKey(hKey)  ''''close the key
   End If
End If

End Function
Function SetStringValue(SubKey As String, Entry As String, Value As String)

Call ParseKey(SubKey, MainKeyHandle)

If MainKeyHandle Then
   rtn = RegOpenKeyEx(MainKeyHandle, SubKey, 0, KEY_WRITE, hKey) ''''open the key
   If rtn = ERROR_SUCCESS Then ''''if the key was open successfully then
      rtn = RegSetValueEx(hKey, Entry, 0, REG_SZ, ByVal Value, Len(Value)) ''''write the value
      If Not rtn = ERROR_SUCCESS Then   ''''if there was an error writting the value
         If DisplayErrorMsg = True Then ''''if the user wants errors displayed
       

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