Exhibit 23.1

            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

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 November 12,
2004 relating to the consolidated financial statements and financial statement
schedule, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP

Boston, Massachusetts
December 14, 2004

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