Hi, I have created a C# project that builds a .DLL. Under new project, I chose class library which seemed logical, I wrote my code, fixed compiler errors and then started a new project to build a Windows program to use as a test harness. In the VS solution explorer with my test harness solution loaded, I arrow down to references, hit applications and select add reference. In the Add Reference dialogue, I go to the browse tab and find my way to the bin\debug folder where my .DLL resides. The file selection list box is entirely empty and VS doesn't seem to acknowledge the existence of a DLL it successfully built about five minutes earlier. What did I do wrong? Is there an easy way out of this? Thanks, cdh __________ View the list's information and change your settings at //www.freelists.org/list/programmingblind