Can i convert a fortran built DLL's to .Net or C# DLL formats?

[meongmania]

I have some DLL's written using fortran, they're very old codes and i am currently writing a newly improved version of the application using C#. Unfortunately, the main engine used in the old software (delphi app) are fully dependant on the DLL's, and i have tried to rewrite them one by one, by reading the .f90 source files. Does anybody know a how-to import those DLL's to C# or maybe .net libs or applications which can be used? I really need them, can anyone help?

[Farhan Ali]

I am not sure about C# DLLs for this,but i think u can include those DLLs as a refernce to ur c# project. .NET framework uses those DLLs as COM componant and u can use required functions inside those DLLs