Exhibit 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (File No. 333-98173) and on Form S-8 (File Nos., 333-98171 and 333-57086) of MRO Software, Inc. of our report dated October 29, 2003, 2003, relating to the consolidated financial statements and financial statement schedule, which appears in this Form 10-K. PricewaterhouseCoopers LLP Boston, Massachusetts December 29, 2003