The Q2 guidance assumes a non-GAAP tax rate of 25% and a GAAP tax provision of 30%, which is a benefit on a loss before tax that includes a one-time tax benefit of approximately $7 million. The Q2 non-GAAP guidance excludes approximately $10 million of stock-based compensation expense, $9 million of acquisition-related intangible asset amortization expenses, $15 million to $20 million of restructuring related expense and the related income tax effects.

The FY’09 guidance assumes a non-GAAP tax rate of 25% and a GAAP tax benefit rate of 30%. The FY’09 non-GAAP guidance excludes approximately $46 million of stock-based compensation expense, $35 million of acquisition-related intangible asset amortization expense, $15 million to $20 million of restructuring related expense and the related income tax effects.

Q1 Earnings Conference Call and Webcast

NOTE: Supplemental financial and operating metric information and prepared remarks for the conference call will be posted to the investor relations section of our website simultaneous to the press release after the market closes on Tuesday, January 27. The prepared remarks will not be read live; the call will be primarily Q&A.

When: Wednesday, January 28, 2009 at 8:30 a.m. Eastern Time

Dial-in: 1-888-566-8560 or 1-517-623-4768

Call Leader: Richard Harrison with Passcode: PTC

Webcast: http://www.ptc.com/for/investors.htm

Replay: The audio replay of this event will be archived for public replay until 4:00 p.m. on February 2, 2009 at 1-866-434-5264 or 1-203-369-1006. To access the replay via webcast, please visit http://www.ptc.com/for/investors.htm.

Important Information About Non-GAAP References

PTC provides non-GAAP supplemental information to its financial results. Non-GAAP operating expenses, margin and EPS exclude stock-based compensation expense, amortization of acquired intangible assets, acquired in-process research and development expenses, restructuring charges, and the related tax effects of the preceding items and any one-time tax items, such as valuation allowance reversals. PTC provides this non-GAAP information to facilitate period-to-period comparisons of its operational performance by adjusting for certain non-cash and certain episodic expenses. We believe that providing non-GAAP measures affords investors a view of our operating results that may be more easily compared to peer companies. PTC management also uses this and other non-GAAP financial information to evaluate, manage and plan our business because the information provides additional insight into ongoing financial performance. In addition, compensation of our executives is based in part on the performance of our business based on these non-GAAP measures. However, non-GAAP information should not be construed as an alternative to GAAP information as the items excluded from the non-GAAP measures often have a material impact on PTC’s financial results. Management uses, and investors should use, non-GAAP measures in conjunction with our GAAP results.

About PTC

PTC (Nasdaq: PMTC) provides discrete manufacturers with software and services to meet the globalization, time-to-market and operational efficiency objectives of product development. Using the company’s CAD, and content and process management solutions, organizations in the Industrial, High-Tech, Aerospace and Defense, Automotive, Consumer and Medical industries are able to support key business objectives and create innovative products that meet both customer needs and comply with industry regulations. For more information on PTC, please visit www.ptc.com.

Statements in this news release that are not historic facts, including statements about our fiscal 2009 expectations, financial targets, anticipated tax rates and cash flows, the expected impact of our planned strategic investments on our future success, the expected effect of our operating expense reduction efforts on future results, and our ability to successfully generate cash at the level we expect, are forward-looking statements that involve risks and uncertainties that could cause actual results to differ materially from those projected. These risks include the possibility that our customers may further reduce, defer or forego investment in our solutions in the current economic climate, the possibility that we will experience a shortfall in revenue that causes us to decrease or eliminate planned strategic investments in our business or to defer or forego repurchases of our stock or repayment of our outstanding debt, the possibility that our efforts to reduce our operating expenses may not have the effects we expect and could harm our operations, and the possibility that we may be unable to draw from our revolving credit facility when or to the extent we decide to do so. In addition, our assumptions concerning our future GAAP and non-GAAP effective income tax rates are based on estimates and other factors that could change, including the geographic mix of our revenue, expenses (including restructuring charges) and profits and loans and cash repatriations from foreign subsidiaries. Other risks and uncertainties that could cause actual results to differ materially from those projected are detailed from time to time in reports we file with the Securities and Exchange Commission, including our most recent Annual Report on Form 10-K.

PTC, The Product Development Company, and all other PTC product names and logos are trademarks or registered trademarks of Parametric Technology Corporation or its subsidiaries in the United States and in other countries. All other companies referenced herein are trademarks or registered trademarks of their respective holders.