http://blogs.msdn.com/tess/archive/2008/03/26/asp-net-case-study-hang-with-mixed-mode-dlls.aspxIf you use mixed mode dlls (assemblies with .net and c++ code) you need to take care to not have any .net entry points so that you don't end up with a GC/LoaderLock deadlock like this one . What is a managed/.net entry point you might ask... it basicallysv-SECommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/tess/archive/2008/03/26/asp-net-case-study-hang-with-mixed-mode-dlls.aspx#8338574Thu, 27 Mar 2008 03:35:18 GMT91d46819-8472-40ad-a661-2c78acb4018c:8338574Iturea<p>Does 3.5 have the same compilation model and policy resolution as 2.0?</p> http://blogs.msdn.com/tess/archive/2008/03/26/asp-net-case-study-hang-with-mixed-mode-dlls.aspx#8338743Thu, 27 Mar 2008 05:01:31 GMT91d46819-8472-40ad-a661-2c78acb4018c:8338743Yuanjian<p>.NET: Introducing the Big Mailer Utility - ASP.NET Upload Utility ASP.NET Case Study: Hang with mixed</p> http://blogs.msdn.com/tess/archive/2008/03/26/asp-net-case-study-hang-with-mixed-mode-dlls.aspx#8339172Thu, 27 Mar 2008 10:28:20 GMT91d46819-8472-40ad-a661-2c78acb4018c:8339172Tess<p>Iturea, </p> <p>yes, 3.5 is not its own CLR core, it is extras built on the 2.0 core so you are still using the 2.0 compilation model and garbage collector when using 3.5</p> http://blogs.msdn.com/tess/archive/2008/03/26/asp-net-case-study-hang-with-mixed-mode-dlls.aspx#8339320Thu, 27 Mar 2008 12:30:22 GMT91d46819-8472-40ad-a661-2c78acb4018c:8339320Josh Coswell<p>Well this is kind of deep. I have used dlls in various ways but I guess this is special case and worth studing.</p> <p>Thanks</p> <p>Josh</p> <p><a rel="nofollow" target="_new" href="http://riverasp.net">http://riverasp.net</a></p>