Microsoft responded Monday to European Union allegations that it is overcharging rivals for information that would make their products work better with Windows. The software maker also repeated its request for more guidance on what regulators consider to be an acceptable price.

To level the software industry’s playing field, EU officials want Microsoft’s rivals to have access at a “reasonable cost” to material that would help their programs interoperate with Windows-based servers. Regulators have called the current prices excessive and Microsoft’s information insufficient.