я вот тут глянул хелп по TApplicationService, там написано:
| Цитата |
...firmation message after successfully installing or uninstalling its services.
Note: Do not add the Forms or Httpapp units to the uses list of the project (Delphi) or includ the unit header for these units in the project source (C++). Those units declare conflicting Application variables of types TApplication and TWebApplication, respectively.
|
|
)