Microsoft HTML Help Workshop buffer overflow vulnerability

The host is running Microsoft HTML Help Workshop which is prone to buffer overflow vulnerability.
Successful remote exploitation could context-dependent attackers to execute arbitrary code via a .hhp file with a long index file field. Impact Level: System.
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
A flaw is due to the way application handle a malformed HTML help workshop project.
Microsoft HTML Help Workshop 4.74 and prior on Windows.