Editing Cello (web browser) (section)

==Technical==
While originally Cello required the Distinct Corporation's TCP/IP stack, with the release of Cello Beta Version .8, Cello dropped support for Distinct, and became exclusively [[Winsock]]-based.<ref name="V.8" /><ref name="AUUGN distinct">{{Cite book|title=AUUGN|url=https://books.google.com/books?id=xI_blk_IVb0C|access-date=28 March 2010|publisher=AUUG, Inc.|page=95|author1=Auug, Inc|date=December 1993}}</ref>

Originally, although Cello could run on [[OS/2]], OS/2's implementation of Winsock had bugs that prevented Cello from accessing the Internet.<ref name="faq2" /> The bug, ''APAR #PN52335'', was later fixed allowing Cello to properly work on OS/2.<ref name="faq2" /><ref name="APAR #PN52335 fix">{{Cite web|title=OS/2 Site - Upgrades - Patches|url=http://www.os2site.com/sw/upgrades/patches/index.html|access-date=2021-01-23|website=www.os2site.com}}</ref>

The [[User agent string|user agent]] for Cello is <code>LII-Cello/<version>  [[libwww]]/2.5</code>.<ref>{{cite web|url=http://www.w3.org/Protocols/HTTP/HTRQ_Headers.html|title=HTTP Request fields|date=3 May 1994 |work=Protocols|publisher=[[W3C]]|access-date=28 March 2010}}</ref>

===DDE support===
Cello featured [[Dynamic Data Exchange]] (DDE) support. [[Object Linking and Embedding|OLE]] support and DDE client support were planned, but never released.<ref name="faq2" />

An example of how to invoke Cello from a [[Microsoft Word]] macro:
<syntaxhighlight lang="vbscript">
Sub MAIN
ChanNum = DDEInitiate("Cello", "URL")
DDEExecute(ChanNum, "http://www.law.cornell.edu")
DDETerminate(ChanNum)
End Sub
</syntaxhighlight>