Debugging with Visual Studio 2005,is very similar to debugging with 2003 in many ways except that First, Edit and Continue are not yet available and you cannot debug in mixed mode.
However you can debug a 64-bit VB, C++ or C# .NET application.
For local debugging the 64-bit application needs to be running on a local machine.
Visual Studio 2005 is not itself a 64-bit application, so it uses a 64-bit emulator called
WOW64 which allows 32-bit Windows applications to run on 64-bit Windows.
Remote debugging also requires your local copy of Visual Studio 2005 to use WOW64.
To debug on a remote machine you first need to install a 64-bit remote debugger on the remote (x64 or IA64) machine. Installing the debugger on a remote 64-bit machine actually installs both the 32-bit and 64-bit, so to start debugging 64-bit applications you need to select it from the start debugging menu.
On a remote machine, you must install a 64-bit remote debugger on the remote (x64 or IA64) computer, and then run Visual Studio 2005 either under WOW64 or on a 32-bit machine.
debugging client side JavaScrip