You can also use the windows api for that purpose. This is however a more costly approach. The function you need to call is SHFileOperation. You can find the ms documenation about the function here:

http://msdn.microsoft.com/en-us/library/bb762164(v=vs.85).aspx

Be careful. file_delete is much safer than using the windows api. If you use SHFileOperation there are pretty good chances the file operation cannot be inverted.