I had the same problems (on a new system). This solved the problem for me:
(
http://support.microsoft.com/default.aspx?kbid=833977 )
I disabled the firewall and did this:
Configure DCOM on the computer that is running Visual Studio .NET
Note After you make changes by using the Distributed Component Object Model
Configuration utility (Dcomcnfg.exe), you must restart your computer for the
changes to take effect. 1. At a command prompt, type dcomcnfg, and then
press ENTER. Component Services opens.
2. In Component Services, expand Component Services, expand Computers,
and then expand My Computer.
3. On the toolbar, click the Configure My Computer button. The My
Computer dialog box appears.
4. In the My Computer dialog box, click the COM Security tab.
5. Under Access Permission, click Edit Limits. The Access Permission
dialog box appears.
6. Under Group or user names, click ANONYMOUS LOGON.
7. Under Permissions for ANONYMOUS LOGON, select the Remote Access
check box, and then click OK.
/Thomas
"Neil Mercer" <NeilMercer@discussions.microsoft.com> skrev i meddelandet
news:09AA97DB-74CA-4C06-8980-A04711E03B5F@microsoft.com...
[quoted text, click to view] > Hi,
>
> I've just changed machines from a Windows XP SP1 machine to a Windows XP
> SP2
> machine, and I'm no longer able to remote debug an VS2003 ASP.NET
> application. I get the error "Unable to start debugger: Access is
> denied".
> Debugging works fine from the old machine - both are logged in as the same
> user. I've had a look at the various solutions offered on the net but
> nothing seems to work.
>
> Can anyone help?
>
> Neil.