Exhibit 10(xvii) ---------------- Chrysalis Corporate Offices 575 Route 28 Raritan, NJ 08869 USA Tel: (908) 722-7900 Fax: (908) 722-6677 E-mail: corporate @ chrysalisintl.com December 23, 1996 Mr. George Montgomery Managing Director Hambrecht & Quist...

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                                                                Exhibit 10(xvii)
                                                                ----------------
Chrysalis
Corporate Offices
000 Xxxxx 00
Xxxxxxx, XX  00000 XXX

Tel:  (000) 000-0000
Fax:  (000) 000-0000
E-mail: corporate @ xxxxxxxxxxxxx.xxx

December 23, 1996

Mr. Xxxxxx Xxxxxxxxxx
Managing Director
Xxxxxxxxx & Xxxxx Inc.
Xxx Xxxx Xxxxxx
Xxx Xxxxxxxxx, XX 00000

Dear Xxxxxx:

This is to confirm our agreement, approved by the Board of Directors on December
18, 1996, to extend the expiration date of Xxxxxxxxx & Xxxxx'x warrant to
purchase 110,000 shares of DNX Corporation common stock for a period of one year
from December 31, 1996 to December 31, 1997. The date of the original warrant
agreement was June 21, 1994.

We very much look forward to continuing our work with you.

Sincerely,

/s/ Xxxx X. Xxxxxx
Xxxx X. Xxxxxx
Vice President &
Chief Financial Officer

JGC:kaw