Shoutbox

I believe all the functions in the Win32 API use __cdecl, but VB can still use them.

Typical VB API access declaration:
Private Declare Function RegOpenKeyEx Lib "advapi32.dll" Alias "RegOpenKeyExA" (ByVal hKey As Long, ByVal lpSubKey As String, ByVal ulOptions As Long, ByVal samDesired As Long, phkResult As Long) As Long

'Template':
Private Declare Function <functionname> Lib "<filename>.dll" Alias "<funcnamefromdll>" (<arglist>) As <returntype>

EDIT: Tell you what, you post the function header from your DLL, and I'll see if I can come up with a VB declaration statement to allow you to use it.