Convert .jar To .vxp Upd !exclusive! -

| Problem | Cause | UPD Fix | | :--- | :--- | :--- | | App installs but screen is black | Game uses FullCanvas which doesn't translate to touch. | Edit touch.config in the VXP: change canvas=full to canvas=lite . | | Keypad game asks for "Press 5" but no keyboard | Game mapped to numeric keys. | Use --virtual-keys on . This overlays transparent touch zones for number keys. | | "Invalid manifest" error | Line break issues from Windows vs Unix. | Open .vxp in 7-Zip, extract META-INF/MANIFEST.MF , replace \r\n with \n , and re-inject. | | Game runs too fast/slow | Clock speed mismatch. | Inside the UPD script, set timer=Double or timer=Half . |

: This is a widely cited freeware tool that can wrap Java programs into executable formats, including .vxp. Convert .jar To .vxp UPD