EXHIBIT 23.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated November 12, 2004 relating to the financial statements and financial statement schedule of MRO Software, Inc., which appears in MRO Software, Inc.'s Annual Report on Form 10-K for the year ended September 30, 2004. We also consent to the reference to us under the heading "Experts" in such Registration Statement. /S/PricewaterhouseCoopers LLP - ----------------------------- Boston, Massachusetts March 8, 2005