Tooltips plugin :up:
pop $0 didn't work.
Worked this way: (Pop $hwnd instead of Pop $0)

:up:
Function ShowCustom
InstallOptions::initDialog /NOUNLOAD "$exedir\m.ini"
Pop $hwnd
GetDlgItem $1 $hwnd 1205
ToolTips::Classic $1 "Desativa e sai." 0xffffee "0" "Arial" 9
GetDlgItem $1 $hwnd 1201
ToolTips::Classic $1 "Digite o proxy..." 0xffffee "0" "Arial" 8
Pop $0
InstallOptions::show
FunctionEnd
:up:

Font size looks perfect now.:D