https://remkoweijnen.nl/blog/tags/dos/Recent content in DOS on Remko's BlogHugoen-usWed, 14 Dec 2011 21:41:22 +0000https://remkoweijnen.nl/blog/2011/12/14/ntvdm-encountered-a-hard-error/Wed, 14 Dec 2011 21:41:22 +0000https://remkoweijnen.nl/blog/2011/12/14/ntvdm-encountered-a-hard-error/<p><a href="https://remkoweijnen.nl/blog/wp-content/uploads/2011/12/image7.webp" class="glightbox" data-type="image" data-gallery="post-2254"><img loading="lazy" decoding="async" style="margin: 0px 3px 0px 0px; display: inline; float: left" title="MS-Dos Logo" alt="MS-Dos Logo" align="left" src="https://remkoweijnen.nl/blog/wp-content/uploads/2011/12/image_thumb7.webp" width="74" height="82" /></a>Today I troubleshooted an old DOS application that needed to run on a 32 bit Citrix XenApp Server. The last time I saw an actual DOS application in a production environment must be years ago.</p> <p>When starting the application, the WOW subsystem (NTVDM) crashed with the message: "NTVM encountered a hard error.":</p> <p><a href="https://remkoweijnen.nl/blog/wp-content/uploads/2011/12/image8.webp" class="glightbox" data-type="image" data-gallery="post-2254"><img loading="lazy" decoding="async" style="background-image: none; border-right-width: 0px; padding-left: 0px; padding-right: 0px; display: inline; border-top-width: 0px; border-bottom-width: 0px; border-left-width: 0px; padding-top: 0px" title="ntvdm.exe - System Error" border="0" alt="NTVDM encoutered a hard error" src="https://remkoweijnen.nl/blog/wp-content/uploads/2011/12/image_thumb8.webp" width="198" height="104" /></a></p> <p>After spending some time troubleshooting I remembered a similar issue from a few years ago where a DOS application worked fine from the Console but refused to work from an RDP or ICA session.</p>