Properties

AcceptButton	Gets or sets the button on the form that is clicked when the user presses the ENTER key.
CancelButton	Gets or sets the button control that is clicked when the user presses the ESC key.
FormBorderStyle (see below)	Gets or sets the border style of the form.
MaximiseBox = False	Gets or sets a value indicating whether the maximize button is displayed in the caption bar of the form.
MinimiseBox = False	Gets or sets a value indicating whether the minimize button is displayed in the caption bar of the form.
ShowInTaskBar = False	Gets or sets a value indicating whether the form is displayed in the Windows taskbar.
SizeGridStyle = Hide	Gets or sets the style of the size grip to display in the lower-right corner of the form.
StartPosition = CenterParent	Gets or sets the starting position of the form at run time.
Text = "dialog name"	Gets or sets the text associated with this control.
WindowState

How to detect if a form has been closed - on a different thread ??

FormBorderStyle

Represents the style of border to display. The default is Sizeable
Fixed refers to a fixed size (ie not resizeable)

Option	Description
None	(0) No border (rarely used)
FixedSingle	(1) A fixed, single line border
Fixed3D	(2) A fixed, three-dimensional border
FixedDialog	(3) A fixed, thick border
Sizeable	(4) (default)
FixedToolWindow	(5) (not resizeable) Only has a close button
SizeableToolWindow	(6)

Hide from StartBar

You can prevent a windows form appearing on the taskbar by setting

Me.ShowInTaskbar = False

Hide from Alt + Tab

You can prevent a windows form appearing in the Alt + Tab dialog box by defining your form to be a Tool window

Me.FormBorderStyle = FixedToolWIndow 
Me.FormBorderStyle = SizeableToolWIndow 
and 
Me.ShowInTaskbar = False

Hide Borderless from Alt + Tab

If you want the form not to have a border and for it not to appear in the Alt + Tab dialog box
Me.FormBorderStyle = FixedToolWIndow
Me.FormBorderStyle = SizeableToolWIndow
and also add the following code to your derived class

Protected Overloads Overrides ReadOnly Property CreateParams() As CreateParams 
Get 
   Dim cp As CreateParams = MyBase.CreateParams 
   cp.ExStyle = cpExStyle Or &H80 
   return cp 
End Get 
End Property