Hi, I had to fix a bug with Windows authentication in 4.0.2, but the project won't compile in release mode.  The compiler complains that DotNetNuke.Common.Global is defined in a DLL in the temp ASPNET folder and in DotNetNuke.dll in the project's bin directory.  I tried moving Global.asax.vb from App_Code to the root, but that caused numerous compile errors.  Does anyone have any suggestions?

Sorry if this is anoying, but here's an explanation of the bug I found.  The bug has to due with VB's complete evaluation feature.  For example, in:

Dim x As String
x = Nothing
If Not x Is Nothing Or x.Length > 0 Then

Even though x is null, "x.Length" will still be called because VB evaluates all terms of the expression (thus "complete evaluation").  Most other language use short-cut evaluation, so when x is null the rest of the expression is skipped.

And since this is a 2.0 forum, the String class contins a new method that that will outperform doing it the long way:

returnValue = String.IsNullOrEmpty(value)

There are also other examples of the IsNullOrEmpty method on other classes as well, but I just can't remember off the top of my head.

It turns out that a debug build DLL the references the global asax class (the cache'ing providers) was getting cached somewhere and not rebuild.  Installing fresh sources and doing a release build before making a debug build "fixes" the problem.