Public Shared Function Acquire( _
   ByVal lck As ILockStrategy, _
   ByVal timeout As Integer _
) As ReadLock

public static ReadLock Acquire( 
   ILockStrategy lck,
   int timeout
)

using (ILockStrategy l = LockFactory.Create())
using (IDisposable r = ReadLock.Acquire(l, 0))
{
    r.Dispose();//since the using statement has the same boxed pointer to r, we are allowed to dispose
}

Using l As ILockStrategy = LockFactory.Create()
    Using r As IDisposable = ReadLock.Acquire(l, 0)
            'since the using statement has the same boxed pointer to r, we are allowed to dispose
        r.Dispose()
    End Using
End Using