austin: I tried your advice. I continued to get the same errors during the Sonar install that I've been getting since the beginning. I decided to click on "ignore" for all the dll errors and after I got the finished installing dialog and tried to run Sonar, it didn't even start. Intead, I got this: Code: fixme:actctx:parse_depend_manifests Could not find dependent assembly L"Microsoft.VC80.CRT" (8.0.50727.762) fixme:actctx:parse_depend_manifests Could not find dependent assembly L"Microsoft.VC80.CRT" (8.0.50727.762) err:module:import_dll Library MFC80U.DLL (which is needed by L"C:\\Program Files\\Cakewalk\\SONAR 8 Studio Edition\\CJLibrary.dll") not found err:module:import_dll Library MSVCR80.dll (which is needed by L"C:\\Program Files\\Cakewalk\\SONAR 8 Studio Edition\\CJLibrary.dll") not found err:module:import_dll Library CJLibrary.dll (which is needed by L"C:\\Program Files\\Cakewalk\\SONAR 8 Studio Edition\\SONARSTD.EXE") not found err:module:import_dll Library MFC80U.DLL (which is needed by L"C:\\Program Files\\Cakewalk\\SONAR 8 Studio Edition\\SONARSTD.EXE") not found err:module:import_dll Library MSVCR80.dll (which is needed by L"C:\\Program Files\\Cakewalk\\SONAR 8 Studio Edition\\SONARSTD.EXE") not found err:module:import_dll Library MSVCP80.dll (which is needed by L"C:\\Program Files\\Cakewalk\\SONAR 8 Studio Edition\\SONARSTD.EXE") not found err:module:LdrInitializeThunk Main exe initialization for L"C:\\Program Files\\Cakewalk\\SONAR 8 Studio Edition\\SONARSTD.EXE" failed, status c0000135 I hope this indicates something I can fix.