How to write injection for PWI in VB.Net

Heya guys,
as the title says i'm searching for a way to write an injection for PWI in order to send keys to a minimized game window ;)
The normal way with PostMessage or SendMessage doesn't work. The Keys are noticed by the game but nothing happens though :o
So i would really appreciate help :)

Greets

I got sendmessage to work for my login

I had to use WM_KEYDOWN + up for enter + tab buttons and WM_CHAR for normal keys

I dont use any sort of key send in game anymore, i used to use autoit ctrlsend to send keys in game and vaguely remember having to turn off pwprotector to make it work

can you explain how you turned pwprotector off??
because i did it with autoit, too.
and with Spy++ i checked that my messages are completely the same as if pushed a key normal ingame, but nothing happens :o

i just closed the process directly, pw-my dont seem check pwprotector anymore, i dunno about pwi

If ProcessExists("pwprotector.exe") Then ProcessClose("pwprotector.exe")

i havnt had to do it in my c# project yet but i havnt got very far yet either

mh i don't have such a process in task manager while running PWI :/