i am getting the following error, when trying to run an application. The System.Web.Dll file is located in the following folder in my machine.<BR><BR>D:/WINNT/Microsoft.NET/Framework/v1.0.3705<BR><BR>Server Error in '/tm' Application.<BR>--------------------------------------------------------------------------------<BR><BR>Configuration Error <BR>Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. <BR><BR>Parser Error Message: File or assembly name System.Web, or one of its dependencies, was not found.<BR><BR>Source Error: <BR><BR><BR>Line 45: --><BR>Line 46: <httpHandlers><BR>Line 47: <add verb="*" path="*.vb" type="System.Web.HttpNotFoundHandler,System.Web" /><BR>Line 48: <add verb="*" path="*.cs" type="System.Web.HttpNotFoundHandler,System.Web" /><BR>Line 49: <add verb="*" path="*.vbproj" type="System.Web.HttpNotFoundHandler,System.Web" /><BR> <BR><BR>Source File: E:devTimeManagementweb.config Line: 47 <BR><BR>Assembly Load Trace: The following information can be helpful to determine why the assembly 'System.Web' could not be loaded.<BR><BR><BR>=== Pre-bind state information ===<BR>LOG: DisplayName = System.Web<BR> (Partial)<BR>LOG: Appbase = file:///E:/dev/TimeManagement<BR>LOG: Initial PrivatePath = bin<BR>Calling assembly : (Unknown).<BR>===<BR><BR>LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind).<BR>LOG: Post-policy reference: System.Web<BR>LOG: Attempting download of new URL file:///D:/WINNT/Microsoft.NET/Framework/v1.0.3705/Temporary ASP.NET Files/tm/4f4b4cc7/c24251d5/System.Web.DLL.<BR>LOG: Attempting download of new URL file:///D:/WINNT/Microsoft.NET/Framework/v1.0.3705/Temporary ASP.NET Files/tm/4f4b4cc7/c24251d5/System.Web/System.Web.DLL.<BR>LOG: Attempting download of new URL file:///E:/dev/TimeManagement/bin/System.Web.DLL.<BR>LOG: Attempting download of new URL file:///E:/dev/TimeManagement/bin/System.Web/System.Web.DLL.<BR>LOG: Attempting download of new URL file:///D:/WINNT/Microsoft.NET/Framework/v1.0.3705/Temporary ASP.NET Files/tm/4f4b4cc7/c24251d5/System.Web.EXE.<BR>LOG: Attempting download of new URL file:///D:/WINNT/Microsoft.NET/Framework/v1.0.3705/Temporary ASP.NET Files/tm/4f4b4cc7/c24251d5/System.Web/System.Web.EXE.<BR>LOG: Attempting download of new URL file:///E:/dev/TimeManagement/bin/System.Web.EXE.<BR>LOG: Attempting download of new URL file:///E:/dev/TimeManagement/bin/System.Web/System.Web.EXE.<BR><BR> <BR><BR><BR>--------------------------------------------------------------------------------<BR>Version Information: Microsoft .NET Framework Version:1.0.3705.0; ASP.NET Version:1.0.3705.0I have seen this error before. Did you recently upgrade from a Beta or Release Candidate version of the .net framework? If you did, you will need to create a new project, and add your existing files to the new project created in the current version of vs .net you are running. Different versions don't necessarily like some of the older project file stuff from what I can tell. Please let me know if this helps.no i have not upgraded the framework. i have visual studio.net version 7 with .Net framework ver 1.0 installed.<BR><BR>is it because of the existing files (dlls) in the project?? because this is not my project. it is a project that i have downloaded from the net. according to the documentation along with the project, by making the changes in the web.config file, the project should work.well i am gettin same error when i am using third party controls...<BR>I have final version of Framework upgraded with latest Service Pack<BR><BR>Its error message doesnt help to rectify<BR>Anyone got Definite solution of this wierd Problem<BR>DhirajHave you tried what I mentioned in the first post? Start a new project, then import the necessary files into it? That should work for you.Hiee there<BR>Wht do u mean by Start new project?????<BR>If u meant using .net Studio i am afraid i dont ve one<BR>I am using Simple Text Editors to create ASP.NET projects<BR>now tel me wht shuld be done<BR>Dhirajthough i have vs.net, but i don't know how to load an existing project files.. can u suggest some article for the same??