How to find path to compact database.sdf in Windows Service?

Question

I have a solution with 3 projects: a WPF application, a setup and a Windows service.

In the WPF application I have a Database.sdf (SQL Server CE database) file. When the application is installed for example in folder X there is also the database.sdf file in this folder.

Now my problem is: I want to connect to this database from the Windows service, how can I find out where the application was installed so I can get the path to the .sdf file?

Answer 1

您可以在安装WPF应用程序的过程中在HKLM中写一个注册表项，其中包含数据库文件的路径，然后Windows Service可以读取此项。