Thank you all very much for your assistance,
this is what what i tried today,
reset the password in AD users and computers
set processModel username to "MyDomain\ASPNET" and entered password
accordingly
i created thre following batch-file to set correct access-permissions
SETLOCAL
SET DOMAIN=MyDomain
SET USER=ASPNET
cacls %SystemDrive%\inetpub\wwwroot /e /t /p %DOMAIN%\%USER%:R
cacls %windir%\Microsoft.NET\Framework /e /t /p %DOMAIN%\%USER%:R
cacls %windir%\Temp /e /t /p %DOMAIN%\%USER%:F
cacls %windir%\System32 /e /t /p %DOMAIN%\%USER%:R
cacls %windir%\assembly /e /t /p %DOMAIN%\%USER%:R
ENDLOCAL
then did an iisreset and tried to open
http://localhost/HelloWorld.aspx
no
luck
Next I set the "Impersonate user After Logon" and "Log on as Batch job"
right for the ASPNET account in Domain Controller security policy AND in
local security policy and ran the following commands
secedit /refreshpolicy machine_policy /enforce
iisreset
tried to open the HelloWorld page

but still not working
Next i reapplied the "DC Security" template and refreshed policies.... man
im getting tired, it's still not working
In the mean time i took a test-system formatted it and installed Windows
2000 Server, Applied SP4 and set it to be a domain controller (for a new
domain that didn't exist on the network), installed .NET Framework 1.1 and
followed instructions from Q811320... it won't play along, same behaviour
(blank pages) except for a HTTP 500 Internal Server Error Response instead
of HTTP 200 OK
The System, Security and Application Eventlogs don't show any error or
failure messages related to the ASPNET domain account
I really don't know what to do next, if you're willing to have a try you
could contact me via MSN Messenger and have a go via Netmeeting Remote
Desktop Sharing as i don't have Terminal Services installed (because TS
disables the Offline Folders feature)
Thanks again for your help, i've learnt a lot about the security features in
ASP.NET and Windows
Joris van Lier