Microsoft does a bad job documenting this. I think the possible settings are as follows, but I'm not sure:
- Read — Read only.
- ReadWrite — Read and write.
- Share Deny None — Neither read nor write access can be denied to others.
- Share Deny Read — Prevents others from opening in read mode.
- Share Deny Write — Prevents others from opening in write mode.
- Share Exclusive — Prevents others from opening in read/write mode.
- Write — Write only.