Multiple MV provisioning DLLs

Hi, I have a requirement to run multiple provisioning DLLs.  I have used the 
code in the URL below and it works fine with all my provisioning DLLs with 
the exception of the GALSync dll.  It appears to be due to the GALSync MA 
using non-standard function names.  The Code in the URL below calls the 
"ShouldDeleteFromMV:" function in all my DLLs, and this works fine -
however, 
in the GALSync DLL, this function does not exist and seems to be replaced by 
"DetermineMVDeletion" which isn't a member of IMVSynchronization.  Has
anyone 
gotten around this issue?

http://msdn2.microsoft.com/en-us/library/ms696018.aspx