.net - 使用 InstallUtil 卸载不存在的服务

Question

我正在使用我的服务的构建前和构建后事件来卸载和安装服务。唯一的问题是，其他开发人员第一次使用预构建事件时会失败，因为该服务尚未安装。

我当前卸载的预构建事件是

%WinDir%\Microsoft.NET\Framework\v4.0.30319\InstallUtil /u $(TargetPath)

我如何使用它来 仅 当服务已经安装时卸载？

Answer 1

您可以使用 Microsoft SC 工具 (Sc.exe) 来查询服务的状态，甚至可以创建或删除服务。这里有一篇关于这个命令的使用的文章:http://support.microsoft.com/kb/251192

从命令提示符窗口(内容编辑以强调):

C:\windows\system32>sc
DESCRIPTION:
        SC is a command line program used for communicating with the
        Service Control Manager and services.
USAGE:
        sc <server> [command] [service name] <option1> <option2>...

       The option <server> has the form "\\ServerName"
       Further help on commands can be obtained by typing: "sc [command]"
       Commands:
         query-----------Queries the status for a service, or
                         enumerates the status for types of services.
         queryex---------Queries the extended status for a service, or
                         enumerates the status for types of services.
         start-----------Starts a service.
         pause-----------Sends a PAUSE control request to a service.
         continue--------Sends a CONTINUE control request to a service.
         stop------------Sends a STOP request to a service.
         delete----------Deletes a service (from the registry).
         create----------Creates a service. (adds it to the registry).

运行此命令来查询 (A) 存在和 (B) 不存在的服务会导致:

(一种)

C:\Windows\System32>sc query W32Time

SERVICE_NAME: W32Time
        TYPE               : 20  WIN32_SHARE_PROCESS
        STATE              : 1  STOPPED
        WIN32_EXIT_CODE    : 1077  (0x435)
        SERVICE_EXIT_CODE  : 0  (0x0)
        CHECKPOINT         : 0x0
        WAIT_HINT          : 0x0

(乙)

C:\Windows\System32>sc query nothere
[SC] EnumQueryServicesStatus:OpenService FAILED 1060:

The specified service does not exist as an installed service.

因此，您可以在尝试使用以下内容删除服务之前测试服务是否存在 - (请原谅 FOR 语句的令人反感的使用，我不确定如何将 sc 命令的输出捕获到变量中或在 IF 语句中使用它)-

set svcname=W32Time
set svc=exists
for /f "delims=" %%o in ('sc query %svcname% ^| find "FAIL"') do set svc=notexists

if "%svc%"=="exists" sc delete %svcname%