Pc lpt (parallel) port input pin, how much current does it draw
The optocoupler works, but i can't provide sufficient current on the 5v side to pull up the input pin from the lpt adaptor card...
If i feed 5v directly on the input pin works without problem. (Jumper from usb for example) So i got my multimeter and measured the current drawn by the input pin ... and is 99-100 mAh... which in my opinion is HUGE ...

From your description, you are trying to drive an output pin as an input, which is a mistake.
Either you are misusing a pin which can only be an output, or else you are using a pin which can be an input in one of the extended modes, but is an output in your present mode.
Especially in the bi-directional case, you should use something like a current limit resist to keep the fault current reasonable in the case where software has not suitably configured the port; preferably you would also have your circuit only try to drive these pins when enabled by software.