CruiseControl.Net + Ankh SVN - svn.exe not found

I am trying to configure the CrusieControl.net with Ankh SVN, the crusine control installation works fine and ccnet.config is configured properly, but when the process starts in background it fires the following error:

System.IO.IOException: Unable to execute file 
[C:\Program Files (x86)\VisualSVN Server\bin\svn.exe].  
The file may not exist or may not be executable. 
(The system cannot find the file specified)

*The above path is a dummy, I can't get the ankh svn EXE installed on my machine at, C:\Program Files (x86)\AnkhSVN 2

The ccnet.config file is as below:

<cruisecontrol xmlns:cb="urn:ccnet.config.builder">
  <cb:define PublishDir="D:\ccnet\ccnet\publish"/>
  <project name="ccnet">
    <workingDirectory>D:\ccnet\ccnet\</workingDirectory>
    <artifactDirectory>D:\ccnet\ccnet\</artifactDirectory>
    <webURL>http://localhost:62584/</webURL>
    <triggers>
      <intervalTrigger name="continuous" seconds="10"
             buildCondition="IfModificationExists"/>
    </triggers>
    <sourcecontrol type="svn">
      <trunkUrl>http://server/svn/ccnet/</trunkUrl>
      <!--<autoGetSource>true</autoGetSource>-->
      <executable>C:\Program Files (x86)\VisualSVN Server\bin\svn.exe</executable>
      <username>abc</username>
      <password>xyz</password>
      <cleanCopy>true</cleanCopy>
    </sourcecontrol>
    <tasks>
      <msbuild>
        <executable>
          C:\WINDOWS\microsoft.net\Framework64\v4.0.30319\MSBuild.exe
        </executable>
        <projectFile>ccnet.sln</projectFile>
        <buildArgs>
          /noconsolelogger /p:Configuration=Release /v:diag
        </buildArgs>
        <logger>
          C:\Program Files (x86)\CruiseControl.NET\server\ThoughtWorks.CruiseControl.MSBuild.dll
        </logger>
        <timeout>600</timeout>
      </msbuild>
    </tasks>
    <labeller type="assemblyVersionLabeller">
      <major>2</major>
      <minor>0</minor>
      <incrementOnFailure>false</incrementOnFailure>
    </labeller>
    <publishers>
      <statistics />
      <xmllogger />
    </publishers>
  </project>
</cruisecontrol>

I tried <autoGetSource>true</autoGetSource> But it tries to find the EXE in my project solution folder.

can anyone guide me for the ankh svn exe path which will be placed in <executable>SVN PATH</executable>

I got the solution by installing the TortoiseSVN with commandline tools and specify the svn.exe located in the bin directory.

so my final source control block is as follows:

<sourcecontrol type="svn">
      <trunkUrl>http://server/svn/ccnet/</trunkUrl>
      <executable>C:\Program Files\TortoiseSVN\bin\svn.exe</executable>
      <username>abc</username>
      <password>xyz</password>
      <cleanCopy>true</cleanCopy>
</sourcecontrol>