Solidworks Add-in Migrating fron SW2007 to SW2008

I have an Add-in developped with Visual Studio 6.0 in C++.When I try to load this Add-in in SW2008 SolidWorks gives me amessage telling that the version is not compatible.

I have compiled de DLL code in Microsoft .NET 2005 plataform andnow the message is diferent: SolidWorks says that can NOT find deDLL or one of its componentes.

I have tried to put in the same directory of my DLL all thedependencies but SW follows giving the same message.
How can I know witch is exactly the componente that SW don't find?

SolidworksApi macros