Microsoft HTML Help Workshop buffer overflow vulnerability

Summary
The host is running Microsoft HTML Help Workshop which is prone to buffer overflow vulnerability.
Impact
Successful remote exploitation could context-dependent attackers to execute arbitrary code via a .hhp file with a long index file field. Impact Level: System.
Solution
No solution or patch was made available for at least one year since disclosure of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer release, disable respective features, remove the product or replace the product by another one. For updates refer to http://office.microsoft.com/en-us/orkXP/HA011362801033.aspx
Insight
A flaw is due to the way application handle a malformed HTML help workshop project.
Affected
Microsoft HTML Help Workshop 4.74 and prior on Windows.
References