Also use correct handle

This extends 9da3d6bb968a1137e8816004f18d2c20b08d7832.

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Adjust datatype

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Initialize members

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Use AtlLoadSystemLibraryUsingFullPath instead of LoadLibrary

Signed-off-by: Sven Strickroth <email@cs-ware.de>