Remind Window pos in VB.Net [Resolved]

[Bongo]

Greetings,

how can I get the "last" windows possition in vb.net.
I tried the example below but I get a error

"E:\...\...\frmMain.vb(95): 'Option Strict On' lässt keine impliziten
Konvertierungen von System.Object in System.Drawing.Point zu."

in the line

Dim pt As Point = xs.Deserialize(fs)

I don't know why.
(Where a the good old days of VB6)

BTW I actually like to safe the Window Pos in the registry but
what I read so far this is not recommendet.

Thanks in advance