I have been fustrating myself with this for a few days.... I developed a small assembly in f# that is linked by a bigger c# application. And it references assemblies from this application and uses objects within these assemblies.

It compiles fine. And on my last computer (now dead!) under Visual Studio 2005 the intelisense worked well and did not show any errors for the referenced objects. However now I am unable to get the intelisense working it marks the open statements and then any use of the class names as errors. The differences between this and my last install are:-

• I am now running Vista
• And I have installed Visual Studio 2008 instead of 2005.

I have tried the following to resolve the problem:-

1. The #r directive at the topic of the source file (compiles but intelisense is still broken)
2. Re-registering the FsLangService.dll, babelpackage.dll, fsprj.dll as suggested in another article.
3. Moving the DLLs so no path is needed in the reference.

None of these has had any effect the problem remains the same it will compile but the intelisense is showing a load of errors. This is really annoying!!!

Any help would be greatly appreciated.

-James