Windows 7, Vista and XP users that installed the latest update from Microsoft on Tuesday, December 11th are reporting that Postscript OpenType fonts have disappeared from applications. This issue is not unique to LHF fonts, but affects all Postscript fonts installed.

From the emails we are receiving, it seems to affect CorelDraw, FlexiSign, PaintShop Pro and Quark.

The remedy is to set update settings to: "Check for updates but let me choose whether to download and install them" and then uninstall the update from yesterday by doing a system restore to an earlier point.

See this site for more information on how to configure your update settings.

Until Microsoft has discovered what the issue is, do not install any updates for Windows.

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[UPDATE]

It looks like Microsoft is aware of the problem now.
We're waiting to hear from them for an update.

CorelDraw is also aware of the problem:
http://coreldraw.com/forums/p/37077/173940.aspx

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[UPDATE]

The specific update causing the problem is KB2753842.

XP users can use this tool to remove the specific update:
http://www.tech-pro.net/windows-update-remover.html

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[UPDATE]

Microsoft has announced that they "will take appropriate action to address the known issues":
http://support.microsoft.com/kb/2753842

Until then, avoid the KB2753842 update (the others ok).

We are watching this closely and will notify all customers as soon as Microsoft has issued the fix.

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[UPDATE]

Please remember that you cannot simply undo the update and expect everything to be fine. You will most likely need to uninstall your fonts and then reinstall them after removing the KB2753842 update.

We are getting many emails from CorelDraw users. Please understand, we are powerless to do anything. We only make fonts. Windows and Corel make the software that enables you to use them.

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[UPDATE]

Issue has been fixed. Microsoft has rereleased the update on December 20th:

"The original version of security update 2753842 had an issue related to OpenType Font (OTF) rendering in applications such as PowerPoint on affected versions of Windows. This issue was resolved in the version of this security update that was rereleased on December 20, 2012."

 Looks like it's safe to download all updates for Windows now.