اینم جواب ولی باز هم نمیشه :

You can accept the default location or browse to the location in which you want the
Web Service to be built, or type in the path. If you do not want to use IIS as your
Web server, you can select either Cassini Web Server or Not specififed from the
Server drop-down list. There are also more advanced Server Options available by
selecting the View Server Options button.
Once you have made your selections and select the OK button, two files are created
for you: WebService1.asmx, and WebService1.pas. Select File | Save As, and save
WebService1.asmx as DayOfWeek.asmx. This will also change the *.pas file to
DayOfWeek.pas. Save the project as DayOfWeekProj.bdsproj.
If you try to run the project at this point, you may get the error message, “unable to
attach to ASP.NET worker process (typically aspnet_wp.exe or w3wp.exe).” If so,
right-click DayOfWeek.asmx in the Project Manager and select “Set as start page”.
Now if you run it, you will get a page in your Web browser similar to this: