Summary

WebLink 6 and Web Access 6 and 7 may stop displaying images. Instead of displaying an image, a red X will appear. This issue can be temporarily resolved by restarting IIS.

Cause

Because of multithreading issues, the image processing wrapper used by WebLink may not function correctly if WebLink tries to generate multiple images simultaneously. This issue may also occur when too many users are simultaneously downloading PDFs.

Resolution 1

This issue is resolved in Laserfiche WebLink 6.17, Web Access 6.01, and Web Access 7.0.2. Please upgrade to the latest version of WebLink and Web Access.

Resolution 2

There is a hotfix available for Laserfiche WebLink 6.16 and Web Access 6.0.

1. Click here to download a zip file containing LFImgSnw74.dll, sndb13cm.dll, and WLO.dll.
2. Copy LFImgSnw74.dll into C:\Program Files\Common Files\Laserfiche\System.
3. Replace the sndb13cm.dll found in C:\Program Files\Common Files\Laserfiche\System with the sndb13cm.dll included in the zip file.
4. Replace the WLO.dll found in C:\Program Files\Common Files\Laserfiche\Web Files with the WLO.dll included in the zip file.
5. Register WLO.dll.
   1. Click Start and then click Run.
   2. In the Run dialog box, type the following and then click OK:

      regsvr32 "C:\Program Files\Common Files\Laserfiche\Web Files\WLO.dll"

6. Restart the World Wide Web Publishing Service.
   1. Click Start and then click Control Panel.
   2. Double-click Administrative Tools.
   3. Double-click Services.
   4. Scroll down and select World Wide Web Publishing.
   5. From the Action menu, select All Tasks, and click Restart.

Resolution 3

There is a hotfix available for Laserfiche Web Access 7.0.1.

1. Click here to download a zip file containing LFImgSnw74.dll, WAO7.dll, and WAPrintServer.dll.
2. Copy LFImgSnw74.dll into C:\Program Files\Common Files\Laserfiche\System.
3. Replace the WAO7.dll found in the Laserfiche Web Access installation folder with the WAO7.dll included in the zip file. The default Web Access installation folder is C:\Program Files\Laserfiche\Web Access.
4. Replace the WAPrintServer.dll found in C:\Program Files\Common Files\Laserfiche\Web Files with the WAPrintServer.dll included in the zip file.
5. Register WAO7.dll.
   1. Click Start and then click Run.
   2. In the Run dialog box, type the following and then click OK:

      regsvr32 "C:\Program Files\Laserfiche\Web Access\WAO7.dll"

6. Restart the World Wide Web Publishing Service.
   1. Click Start and then click Control Panel.
   2. Double-click Administrative Tools.
   3. Double-click Services.
   4. Scroll down and select World Wide Web Publishing.
   5. From the Action menu, select All Tasks, and click Restart.