Call Function in Process from another

Hi,
how the topic says i'm wondering if it's possible to call an function from your application(no dll loaded from a loader) via jmp or call?

example:
i have app1 that has a function which opens a messagebox "Hello!". Now i'm tryin to call that function from another application while the app1 is running.

thanks for your advice

Read this:

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wow thanks thats exactly what i searched for!

Edit: But for tutorial 1 do i need a loader which loads my DLL to the specific app?

Quote:

Originally Posted by Adroxxx Read this: [Only registered and activated users can see links. Click Here To Register...] [Only registered and activated users can see links. Click Here To Register...]

Nice Tutorials. Thanks for sharing them.

@BackToReality,
Simply download a Injecter , or use a Proxy DLL that is used by your Game (mostly winmm.dll for sound and d3d9_29.dll for the directx stuff).

mhh so it's not possible to call a function from specific app without dll injection?

Sure it is possible.

See [Only registered and activated users can see links. Click Here To Register...].

btw found:

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thx :)