Need a correct path to access to my server...

Question

I install on my server my files and I need to connect from my client. 
Then I create a config file and I put the path. From my client I create a shortcut. 
But doesnt works!

<connectionStrings>
   <add name="ConnectionName"
     connectionString="C:\test\test\App_Data\test.mdb"
     providerName="System.Data.Oledb" />
 </connectionStrings>