HTH

from Jargon File (4.4.4, 14 Aug 2003)

HTH
 //

   [Usenet: very common] Abbreviation: Hope This Helps (e.g. following a
   response to a technical question). Often used just before {HAND}. See
   also {YHBT}.

from The Free On-line Dictionary of Computing (8 July 2008)

HTH

   <chat> Hope This Helps.  Often used sarcastically, see {HAND}.

   (1998-03-06)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

HTH
       Hope This Helps (slang)

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