| Platform SDK: DirectX | 
The DirectMusicLoader.LoadCollection method loads a DLS collection from a file.
object.LoadCollection(filename As String) _
    As DirectMusicCollection
If the method succeeds, it returns a DirectMusicCollection object.
If the method fails, it raises an error, and Err.Number can be set to one of the following values:
| DMUS_E_FAIL | 
| DMUS_E_INVALIDARG | 
| DMUS_E_OUTOFMEMORY | 
| DMUS_E_LOADER_FAILEDOPEN | 
| DMUS_E_LOADER_FAILEDCREATE | 
| DMUS_E_LOADER_FORMATNOTSUPPORTED | 
| DMUS_E_NOTADLSCOL |