As filed with the Securities and Exchange Commission on July 15, 2003

Registration No. 333-            

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-8

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

QUEST SOFTWARE, INC.

(Exact name of registrant as specified in its charter)

California	33-0231678
(State or other jurisdiction of incorporation or organization)	(IRS Employer Identification No.)

8001 Irvine Center Drive

Irvine, CA 92618

(Address of principal executive offices) (Zip Code)

1999 STOCK INCENTIVE PLAN

1999 EMPLOYEE STOCK PURCHASE PLAN

(Full title of the Plan)

J. Michael Vaughn

General Counsel and Secretary

Quest Software, Inc.

8001 Irvine Center Drive

Irvine, CA 92618

(Name and address of agent for service)

(949) 754-8000

(Telephone number, including area code, of agent for service)

CALCULATION OF REGISTRATION FEE

Title of Securities to be Registered	Amount to be Registered (1)	Proposed Maximum Offering Price Per Share (2)	Proposed Maximum Aggregate Offering Price (2)	Amount of Registration Fee
1999 Stock Incentive Plan
Common Stock, no par value	6,000,000 Shares	$12.05	$72,300,000	$5,850
1999 Employee Stock Purchase Plan
Common Stock, no par value	800,000 Shares	$10.25	$8,200,000	$664
TOTAL	6,800,000			$6,514

(1) Represents (i) 6,000,000 shares issuable pursuant to the Registrant’s 1999 Stock Incentive Plan (the “Option Plan”) and (ii) 800,000 shares issuable pursuant to the Registrant’s 1999 Employee Stock Purchase Plan (the “Purchase Plan”). An aggregate of (i) 14,986,800 shares of Common Stock available for issuance under the Option Plan and (ii) 1,200,000 shares of Common Stock available for issuance under the Purchase Plan were registered on November 22, 1999 (Registration No. 333-91429). An additional 2,513,200 shares of Common Stock available for issuance under the Option Plan were registered on May 26, 2000 (Registration No. 333-38002). This Registration Statement shall also cover any additional shares of Common Stock which become issuable under the Plan by reason of any stock dividend, stock split, recapitalization or other similar transaction effected without the Registrant’s receipt of consideration which results in an increase in the number of the outstanding shares of Registrant’s Common Stock.

(2) Estimated, solely for purposes of calculating the registration fee, pursuant to Rule 457(h) on the basis of the average of the high and low sales prices of the Registrant’s Common Stock on July 8, 2003 (which was $12.05), as reported by the Nasdaq National Market. With respect to the Purchase Plan, this amount is multiplied by 85% to reflect the discount applicable to purchases made under such plan.

PART II

Information Required in the Registration Statement

In accordance with Section E of the General Instructions to Form S-8, Quest Software, Inc. (the “Registrant”) hereby incorporates by reference the contents of the Registrant’s Registration Statements on Form S-8 previously filed with the Securities and Exchange Commission relating to the Option Plan (Registration Nos. 333-91429 and 333-38002) and relating to the Purchase Plan (Registration No. 333-91429).

Item 8. Exhibits

Exhibit Number	Exhibit
5	Opinion of General Counsel
23.1	Consent of Deloitte & Touche LLP
23.2	Consent of General Counsel (included in Exhibit 5)
24	Power of Attorney (included on the signature page)
99.1	Quest Software, Inc. 1999 Stock Incentive Plan, as amended
99.2	Quest Software, Inc. 1999 Employee Stock Purchase Program, as amended

II-1

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8, and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Irvine, State of California on this 15th day of July, 2003.

QUEST SOFTWARE, INC.
By:	/S/ M. BRINKLEY MORSE
	M. Brinkley Morse, Vice President, Finance and Operations and Chief Financial Officer

POWER OF ATTORNEY

The undersigned officers and directors of Quest Software, Inc., a California corporation, do hereby constitute and appoint Vincent C. Smith and M. Brinkley Morse, and each of them, the lawful attorneys-in-fact and agents with full power and authority to do any and all acts and things and to execute any and all instruments which said attorneys and agents, and any one of them, determine may be necessary or advisable or required to enable said corporation to comply with the Securities Act of 1933, as amended, and any rules or regulations or requirements of the Securities and Exchange Commission in connection with this Registration Statement. Without limiting the generality of the foregoing power and authority, the powers granted include the power and authority to sign the names of the undersigned officers and directors in the capacities indicated below to this Registration Statement, to any and all amendments, both pre-effective and post-effective, and supplements to this Registration Statement, and to any and all instruments or documents filed as part of or in conjunction with this Registration Statement or amendments or supplements thereof, and each of the undersigned hereby ratifies and confirms that all said attorneys and agents, or any one of them, shall do or cause to be done by virtue hereof. This Power of Attorney may be signed in several counterparts.

Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.

Signature	Title	Date
/S/    VINCENT C. SMITH Vincent C. Smith	Chief Executive Officer (Principal Executive Officer) and Chairman of the Board	July 15, 2003
/S/    DAVID M. DOYLE David M. Doyle	Director	July 15, 2003
/S/    M. BRINKLEY MORSE M. Brinkley Morse	Vice President, Finance and Operations (Principal Financial Officer) and Chief Financial Officer	July 15, 2003
/S/    KEVIN BROOKS Kevin Brooks	Vice President, Corporate Controller (Principal Accounting Officer)	July 15, 2003
/S/    DORAN G. MACHIN Doran G. Machin	Director	July 15, 2003
/S/    JERRY MURDOCK, JR. Jerry Murdock, Jr.	Director	July 15, 2003
/S/    RAYMOND J. LANE Raymond J. Lane	Director	July 15, 2003
/S/    AUGUSTINE L. NIETO II Augustine L. Nieto II	Director	July 15, 2003

EXHIBIT INDEX

Exhibit Number	Exhibit
5	Opinion of General Counsel
23.1	Consent of Deloitte & Touche LLP
23.2	Consent of General Counsel (included in Exhibit 5)
24	Power of Attorney (included on the signature page)
99.1	Quest Software, Inc. 1999 Stock Incentive Plan, as amended
99.2	Quest Software, Inc. 1999 Employee Stock Purchase Plan, as amended