McKesson Corporation Watch

from 8-K 36 pages Mckesson Corporation Floating Rate Notes Due 2015 1.292% Notes Due 2017 2.284% Notes Due 2019 3.796% Notes Due 2024 4.883% Notes Due 2044 Underwriting Agreement

from 8-K 32 pages Mckesson Corporation 1.400% Notes Due 2018 2.850% Notes Due 2023 Underwriting Agreement

from 8-K 32 pages Mckesson Corporation 0.950% Notes Due 2015 2.700% Notes Due 2022 Underwriting Agreement

from 8-K 31 pages Mckesson Corporation 3.250% Notes Due 2016 4.750% Notes Due 2021 6.000% Notes Due 2041 Underwriting Agreement

from 8-K 30 pages Mckesson Corporation $350,000,000 7.500% Notes Due 2014 $350,000,000 6.500% Notes Due 2019 Underwriting Agreement February 9, 2009 Banc of America Securities LLC J.P. Morgan Securities Inc. Underwriting Agreement

from 8-K 29 pages Mckesson Corporation $1,000,000,000 5.25% Notes Due 2013 5.70% Notes Due 2017 Underwriting Agreement February 28, 2007 Banc of America Securities LLC Wachovia Capital Markets, LLC Underwriting Agreement

from S-3 28 pages Form of Underwriting Agreement

from S-3 30 pages Form of Underwriting Agreement

from 8-A12G 58 pages Mckesson Corporation and the Bank of New York, Rights Agent Rights Agreement Dated as of October 22, 2004

from 8-K ~20 pages Underwriting Agreement

from SC 13G/A 1 page <page> Exhibit 1 Joint Filing Agreement in Accordance With Rule 13d-1(k) Promulgated Under the Securities Exchange Act of 1934, as Amended, the Persons Named Below Agree to the Joint Filing on Behalf of Each of Them a Statement on Schedule 13g (Including Amendments Thereto) With Regard to the Common Stock of McKesson Hboc, Inc., and Further Agree That This Joint Filing Agreement Be Included as an Exhibit to Such Joint Filings. in Evidence Thereof, the Undersigned, Being Duly Authorized, Hereby Execute This Agreement as of the 14th Day of February, 2000. Esl Partners, L.P. By: Rbs Partners, L.P., Its General Partner By: Esl Investments, Inc., Its General Partner By: /S/ Edward S. Lampert Edward S. Lampert Chairman Esl Limited By: Esl Investment Management, LLC, Its Investment Manager By: /S/ Edward S. Lampert Edward S. Lampert Managing Member Esl Institutional Partners, L.P. By: Rbs Investment Management, LLC, Its General Partner By: /S/ Edward S. Lampert Edward S. Lampert Managing Member <page> Exhibit 1 Cbl Partners, L.P. By: Esl Investments, Inc., Its General Partner By: /S/ Edward S. Lampert Edward S. Lampert Chairman Msd Portfolio L.P. - Investments By: Msd Capital, L.P., Its General Partner By: /S/ John Phelan John Phelan Managing Principal Rpks Investments, LLC By: /S/ Glenn Fuhrman Glenn Fuhrman Managing Member Triple Marlin Investments, LLC By: /S/ John Phelan John Phelan Managing Member Michael Dell Personal Income Trust By: /S/ John Phelan John Phelan Trustee Ziff Asset Management, L.P. By: Pbk Holdings, Inc., Its General Partner By: /S/ Mark A. Beaudoin Mark A. Beaudoin Treasurer

from NT 11-K 1 page <page> Exhibit 1 September 27, 1999 Ms. Heidi Yodowitz Senior Vice President and Controller and Acting Chief Financial Officer Mckesson Hboc, Inc. One Post Street San Francisco Ca 94104 Dear Ms. Yodowitz, This Is to Confirm That, Because the Hbo & Company Profit Sharing and Savings Plan (The "Plan") Has Not Yet Finalized Its Financial Statements as of and for the Three Months Ended March 31, 1999, Crisp, Hughes Evans Llp Was Unable to Complete the Audits of the Plan's Financial Statements for Such Period by September 27, 1999. Yours Truly, /S/ Crisp, Hughes Evans Llp

from SC 13G 1 page <page> 1 Exhibit 1 Joint Filing Agreement in Accordance With Rule 13d-1(k) Promulgated Under the Securities Exchange Act of 1934, as Amended, the Persons Named Below Agree to the Joint Filing on Behalf of Each of Them a Statement on Schedule 13g (Including Amendments Thereto) With Regard to the Common Stock of McKesson Hboc, Inc., and Further Agree That This Joint Filing Agreement Be Included as an Exhibit to Such Joint Filings. in Evidence Thereof, the Undersigned, Being Duly Authorized, Hereby Execute This Agreement as of the 16th Day of July, 1999. Esl Partners, L.P. By: Rbs Partners, L.P., Its General Partner By: Esl Investments, Inc., Its General Partner By: /S/ Edward S. Lampert Edward S. Lampert Chief Executive Officer Esl Limited By: Esl Investment Management, LLC, Its Investment Manager By: /S/ Edward S. Lampert Edward S. Lampert Managing Member Esl Institutional Partners, L.P. By: Rbs Investment Management, LLC, Its General Partner By: /S/ Edward S. Lampert Edward S. Lampert Managing Member <page> 2 Exhibit 1 Cbl Partners, L.P. By: Esl Investments, Inc., Its General Partner By: /S/ Edward S. Lampert Edward S. Lampert Chief Executive Officer Msd Portfolio L.P. - Investments By: Msd Capital, L.P., Its General Partner By: /S/ John Phelan John Phelan Managing Principal Rpks Investments, LLC By: /S/ Glenn Fuhrman Glenn Fuhrman Managing Member Triple Marlin Investments, LLC By: /S/ John Phelan John Phelan Managing Member Ziff Asset Management, L.P. By: Pbk Holdings, Inc., Its General Partner By: /S/ Mark A. Beaudoin Mark A. Beaudoin Treasurer

from NT 11-K 1 page <page> Exhibit 1 June 30, 1999 Ms. Heidi Yodowitz Senior Vice President and Controller and Acting Chief Financial Officer Mckesson Hboc, Inc. One Post Street San Francisco Ca 94104 Dear Ms. Yodowitz, This Is to Confirm That, Because Mckesson Hboc, Inc. (The "Company") Has Not Yet Finalized Its Consolidated Financial Statements as of and for the Three Years Ended March 31, 1999, Deloitte & Touche Llp Was Unable to Complete the Audits of the Company's Consolidated Financial Statements for Such Periods by June 29, 1999. Yours Truly, /S/ Deloitte & Touche Llp

from NT 10-K 1 page <page> Exhibit 1 June 30, 1999 Ms. Heidi Yodowitz Senior Vice President and Controller and Acting Chief Financial Officer Mckesson Hboc, Inc. One Post Street San Francisco Ca 94104 Dear Ms. Yodowitz, This Is to Confirm That, Because Mckesson Hboc, Inc. (The "Company") Has Not Yet Finalized Its Consolidated Financial Statements as of and for the Three Years Ended March 31, 1999, Deloitte & Touche Llp Was Unable to Complete the Audits of the Company's Consolidated Financial Statements for Such Periods by June 29, 1999. Yours Truly, /S/ Deloitte & Touche Llp

from S-3/A ~20 pages Form of Underwriting Agreement (Equity)

from S-3/A ~20 pages Form of Underwriting Agreement (Debt)

from 8-K ~20 pages Underwriting Agreement

from SC 13G/A 1 page Exhibit 1 Joint Filing Agreement in Accordance With Rule 13d-1(f) of Regulation 13d-G of the Securities Exchange Act of 1934, the Persons or Entities Below Agree to the Joint Filing on Behalf of Each of Them of This Statement on Schedule 13g/a (Including Any and All Amendments Thereto) With Respect to the Common Stock of McKesson Corporation, and Further Agree That This Joint Filing Agreement Be Included as an Exhibit to Such Joint Filings. in Evidence Thereof the Undersigned, Being Duly Authorized, Hereby Execute This Agreement This 1st Day of February, 1996. the Chase Manhattan Corporation Dated: February 14, 1996 By:/S/John V. Caulfield John V. Caulfield, Vice President the Chase Manhattan Bank, N.A. Dated: February 14, 1996 By:/S/John V. Caulfield John V. Caulfield, Vice President McKesson Corporation Profit-Sharing Investment Plan and Trust Created Pursuant Thereto: By: The Chase Manhattan Bank, N.A., Solely in Its Capacity as Master Trustee of the Trust Created Pursuant to the McKesson Corporation Master Trust Agreement. Dated: February 14, 1996 By:/S/John V. Caulfield John V. Caulfield, Vice President