Exhibit 31.1

CERTIFICATION

I, Patrick Vogt, certify that:

1	.	I have reviewed this quarterly report on Form 10-Q of Viewpoint Corporation;

2	.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to
		state a material fact necessary to make the statements made, in light of the circumstances under which
		such statements were made, not misleading with respect to the period covered by this report;

3	.	Based on my knowledge, the financial statements, and other financial information included in this
		report, fairly present in all material respects the financial condition, results of operations and cash flows
		of the registrant as of, and for, the periods presented in this report;

4	.	The registrant’s other certifying officers and I are responsible for establishing and maintaining
		disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and
		internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for
		the registrant and have:

		(a) Designed such disclosure controls and procedures, or caused such disclosure controls and
		procedures to be designed under our supervision, to ensure that material information relating to
		the registrant, including its consolidated subsidiaries, is made known to us by others within those
		entities, particularly during the period in which this report is being prepared;

		(b) Designed such internal control over financial reporting, or caused such internal control over
		financial reporting to be designed under our supervision, to provide reasonable assurance
		regarding the reliability of financial reporting and the preparation of financial statements for
		external purposes in accordance with generally accepted accounting principles;

		(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and
		presented in this report our conclusions about the effectiveness of the disclosure controls and
		procedures, as of the end of the period covered by this report based on such evaluation; and

		(d) Disclosed in this report any change in the registrant’s internal control over financial reporting
		that occurred during the registrant’s most recent fiscal that has materially affected, or is
		reasonably likely to materially affect, the registrant’s internal control over financial reporting;
		and

5	.	The registrant’s other certifying officers and I have disclosed, based on our most recent evaluation of
		internal control over financial reporting, to the registrant’s auditors and the audit committee of the
		registrant’s board of directors:

		(a) All significant deficiencies and material weaknesses in the design or operation of internal
		control over financial reporting which are reasonably likely to adversely affect the registrant’s
		ability to record, process, summarize and report financial information; and

		(b) Any fraud, whether or not material, that involves management or other employees who have
		a significant role in the registrant’s internal control over financial reporting.

Dated: May 10, 2007	By:	/s/ PATRICK VOGT
		Patrick Vogt
		President and Chief Executive Officer

VIEWPOINT CORP 10-Q