# Expiration error window et al

**URL:** https://resource.dopus.com/t/expiration-error-window-et-al/7921
**Category:** Help & Support
**Created:** [May 25, 2009, 6:32pm UTC](https://resource.dopus.com/t/expiration-error-window-et-al/7921 "2009-05-25T18:32:25Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![Cris](https://resource.dopus.com/user_avatar/resource.dopus.com/cris/32/25993_2.png) [@Cris](https://resource.dopus.com/u/Cris)
#### Post date: [May 25, 2009, 7:01pm UTC](https://resource.dopus.com/t/expiration-error-window-et-al/7921/3 "2009-05-25T19:01:10Z")

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and if you have AVG or Kaspersky installed, please read this post: [[resource.dopus.com/t/registration-certificate-does-not-stick/3303/1](http://resource.dopus.com/t/registration-certificate-does-not-stick/3303/1))

And for other people with the same problem, also read these posts:

[[Registration Certificate installation problems](http://resource.dopus.com/t/registration-certificate-installation-problems/1509/1))  
[[File listing suddenly changed to short 8.3 names](http://resource.dopus.com/t/file-listing-suddenly-changed-to-short-8-3-names/7268/1))

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