Is there an equivalent to the mod_pagespeed Apache module for IIS?

Question

Is there an equivalent to mod_pagespeed Apache module but for IIS?

Answer 1

No.

Not right now, at least.

Do keep in mind, however, that mod_pagespeed is an automation of the best practices of web caching and speeding and you can manually set those up. PageSpeed Extension and YSlow extension are both very helpful to understand what should be optimized.