Agent FORTRESS CREDIT CORP., as Agent for and on behalf of the Finance Parties By: /s/ Marc K. Furstein Name: Marc K. Furstein

EXHIBIT 10.147

THIS AMENDMENT AGREEMENT No. 4 (this Amendment Agreement) is dated as of May 17, 2007

BETWEEN:

WHEREAS:

(B) The Company failed to make the (i) last two installments of a mandatory prepayment pursuant to Clause 7.2(b) of the Credit Agreement and Section 3(a) of Amendment No. 3 to the Credit Agreement (Amendment No. 3), in the amount of US$500,000 due on February 28, 2007 and in the amount of US$1,000,000 due on March 30, 2007 and (ii) the scheduled principal repayment on in the amount of $833,063 due on May 2, 2007.

(C) The Company failed to pay the full amount of interest accrued on the Loan for the Interest Period commencing on (and including) April 1, 2007 and ending on (and including) April 30, 2007 and the Company owes interest at the Default Rate for the period commencing on (and including) March 1, 2007 and ending on (and including) April 30, in accordance with Clause 8.4 of the Credit Agreement, in an aggregate amount of $106,741.19;

(D) The Company failed to pay to the Agent for the benefit of the Lenders a reorganization success fee pursuant to Section 3(d) of Amendment No. 3 in the amount of US$200,000 on March 30, 2007.

(E) The Company failed to pay to the Agent for the benefit of the Lenders the final installment of an amendment fee pursuant to Section 10(a) of Amendment No. 3 in the amount of US$100,000.

(F) This Amendment Agreement is supplemental to and amends the Credit Agreement. The Company and the Agent have agreed that the Credit Agreement should be amended as set forth in this Amendment Agreement.

IT IS AGREED as follows:

Terms defined in the Credit Agreement (by reference or otherwise) have, unless expressly defined in this Amendment Agreement, the same meanings in this Amendment Agreement.

The provisions of Clause 1.2 (Construction) of the Credit Agreement apply to this Amendment Agreement as though they were set out in full in this Amendment Agreement, except that references to “this Agreement” are to be construed as references to this Amendment Agreement.

With effect on and from the date of this Amendment Agreement, the Credit Agreement will be amended by, and the rights and obligations of the parties thereto relating to their future performance under the Credit Agreement will be governed by and construed in accordance with, the Credit Agreement as amended, modified and supplemented by this Amendment Agreement.

Notwithstanding anything contained in the Credit Agreement to the contrary, the Company and the Agent hereby agree that:

The Company makes each representation and warranty set out in Clauses 4.2 (Powers and Authority) through 4.6 (Credit Agreement) of this Amendment Agreement to each Finance Party.

It has the power to enter into and perform, and has taken all necessary action to authorize the entry into and performance of this Amendment Agreement and the transactions contemplated by this Amendment Agreement.

The entry into and performance by it of, and the transactions contemplated by, this Amendment Agreement do not and will not:

All authorizations required by it in connection with the entry into, performance and validity and enforceability of, and the transactions contemplated by, this Amendment Agreement have been obtained or effected (as appropriate) and are in full force and effect.

The Company hereby represents and warrants that, on the date of this Amendment Agreement, the representations and warranties set out in Clauses 15.2 (Status) through 15.16 (United States laws) of the Credit Agreement:

provided, however, that with respect to the representations and warranties set out in Clause 15.10 (Litigation), (i) the litigation filed in Georgia state court (State of Georgia Civil Action Number 2007CV131153, Awald et al. v. Halo Technology Holdings, Inc.), were such litigation determined adversely to the Company, and (ii) the litigation filed in Illinois state court, Circuit Court of Cook County, Illinois, County Department, Chancery Division, Case No. 07CH12078 (the “Crestview Suit”) were such litigation determined adversely to the Company, then either such litigation would likely have a Material Adverse Effect.

The Company acknowledges that it makes such representations and warranties with the intention of persuading Agent (on behalf of the Lenders) to enter into this Amendment Agreement and that the Agent has entered into this Amendment Agreement on the basis of, and in full reliance on, each of such representations and warranties.

This Amendment Agreement is governed by the laws of the State of New York. The provisions of Clauses 36 (Governing Law) and 37 (Enforcement) of the Credit Agreement are incorporated by reference into this Amendment Agreement as if fully set out herein, with each reference to “this Agreement” (including in the definition of Finance Documents) being understood to be a reference to this Amendment Agreement.

If any provision of this Amendment Agreement is or becomes illegal, invalid or unenforceable in any jurisdiction, that shall not affect:

This Amendment Agreement may be executed in any number of counterparts, and this has the same effect as if the signatures on the counterparts were on a single copy of this Amendment Agreement.

This Amendment Agreement, the Credit Agreement and the other Finance Documents contain the complete agreement between the Parties on the matters to which such agreements relate and supersede all prior commitments, agreements and understandings, whether written or oral, with respect to those matters.

The Company on behalf of itself, its Subsidiaries and Affiliates hereby acknowledge, effective upon the date of this Amendment Agreement, that the Company and its Subsidiaries and Affiliates, have no defense, counterclaim, offset, cross-complaint, claim or demand of any kind or nature whatsoever that can be asserted to reduce or eliminate all or any part of any Obligor’s liability to repay all amounts due and owing under the Credit Agreement or to seek affirmative relief or damages of any kind or nature from the Agent, any Lender or any of their past and present officers, partners, members, directors, servants, agents, attorneys, assigns, employees, heirs, parents, subsidiaries, or any other Person acting for or on behalf of any of them. The Company and its Subsidiaries and Affiliates, all their successors, assigns, Subsidiaries and Affiliates and any Person acting for or on behalf of, or claiming through them, hereby fully, finally and forever release and discharge the Agent and the Lenders and all of the Agent’s and Lenders’ past and present officers, partners, members, directors, servants, agents, attorneys, assigns, employees, heirs, parents, subsidiaries, and each Person acting for or on behalf of any of them (collectively, the “Released Parties”) of and from any and all past, present and future actions, causes of action, demands, suits, claims, liabilities, Liens, lawsuits, adverse consequences, amounts paid in settlement, costs, damages, debts, deficiencies, diminution in value, disbursements, expenses, losses and other obligations of any kind or nature whatsoever, whether in law, equity or otherwise (including without limitation those arising under 11 U.S.C. §§ 541-550 and interest or other carrying costs, penalties, legal, accounting and other professional fees and expenses, and incidental, consequential and punitive damages payable to third parties), whether known or unknown, fixed or contingent, direct, indirect, or derivative, asserted or unasserted, foreseen or unforeseen, suspected or unsuspected, liquidated or unliquidated, matured or unmatured, now existing, heretofore existing or which may heretofore accrue against any of the Released Parties, whether held in a personal or representative capacity, and which are based on any act, fact, event or omission or other matter, cause or thing occurring at or from any time prior to and including the date hereof in any way, directly or indirectly arising out of, connected with or relating to the Credit Agreement and the transactions contemplated thereby, and all other agreements, certificates, instruments and other documents and statements (whether written or oral) related to any of the foregoing or to the documents related to the transaction contemplated herein. The parties agree that none of Crestview Capital Master, LLC and Crestview Capital Partners LLC shall be considered an “Affiliate” of the Company for the purposes of this paragraph.

The Agent, for and on behalf of itself and the Finance Parties, hereby acknowledges that the existing defaults described in Whereas clauses (B), (C), (D) and (E) of this Amendment Agreement shall be deemed to be cured upon payment of the amounts payable pursuant to Sections 3(b), 3(c), 3(d) and 3(f) of this Amendment Agreement.

The undersigned, intending to be legally bound, have executed and delivered this Amendment Agreement on the date stated at the beginning of this Amendment Agreement.

Signatories

Company

HALO TECHNOLOGY HOLDINGS, INC.

By: /s/ Ernest C. Mysogland
Name: Ernest C. Mysogland
Title: Executive Vice President