PCB fab capability defined thru design rules in different CAD tools?

With the growing demand for PCB's being designed and fabricated from prototyping to mass production of consumer electronic products, PCB designers setup their DRC (design rule check) based on the fabrication shop capability. For a PCB designer having to fab his board to different PCB fab, the DRC may need to be updated depending on their choice of PCB fab.

I'd like to know if there are companies that can provide a DRC setup files for the different PCB design softwares like Cadence Allegro, Mentor Graphics PADS or Expedition, Altium Designer...etc? What are the pro's and con's of this setup?

All should be based on the current IPC DRC specs but variations exist due to vendor processing windows and design tolerance requirements. Also special variations exist due to contract manufacturer for wave soldering vs SMD reflow or high mass parts prefer to use teardrop patterns and screen printer fiducials , process engineers have preferences for pattern recognition depending on quality of vision systems. Still other designers have preferences for track/gap margins depending on cost of fabrication vs volume and capabilities of suppliers. So this accounts to variations on assumptions for each DRC package. There are central control houses on these DRC parameters but it is not all free nor readily available, so experience plays a major factor in selection. Your best bet to purchase latest IPC design rules and get updates.. (Not cheap)

Choose fab houses that can produce your design, these days most fab houses should be capable of doing all standard PCB design. Its only when you get to realy exotic designs will you have trouble going from one fab house to another.
And as stated IPC standrads are the one to use and reference as your PCB fab house will work to IPC standards when producing the board.

After 20yrs in the biz when I was Operations Mgr in R&D and managed a small SMD prototype service for the R&D guys, I had a buyer but I did all the technical aspects for choosing a PWB supplier getting quotes in 1hr from 3 suppliers, send gerbers by modem (90's) cutting PO, interfacing with Tech front end specialists on DRC issues and getting 3~5 day turns on ML Getek boards. I spoke soften to one owner on the phone, he recognized me from my voice in 2 seconds at Comdex.
Generally 3/3mil track gap, 5/5 mil for production and quick turn around are not the best for lowest production cost, so sometimes you need at least 2~4 qualified suppliers with audits. Most buyers email Gerbers but eventually I just got quotes from 7 or so specs. once I figured out their quoting model for small proto runs of 5~10 pc.