Good afternoon SupportGuy

That error is generally caused by an out of date DLL or EXE.  I usually start with the update.log file that is generated.  It will identify which files are the incorrect version After I identify the files with the incorrect version, I attempt to either restore the file or copy them from a working PC. After the files are replace with the correct version then attempt to run the update again

For more information please refer to KB link below

Error: "You must have Sage Timberline Office [version x] Accounting
installed before you can apply this update. Please install Sage timberline
Office [version x] Accounting and then run this update again"   

I hope that you find this information usefull

Have a great day!

Had same problem and was able to correct on the server, but now receiving the same error message when applying the update to a workstation - the workstation does not have the same .DLL files as the server - what is the solution to update the workstations?

Good afternoon CVL_IT

If you have the error Error: "You must have Sage Timberline Office [version x] Accounting installed before you can apply this update. Please install Sage timberline Office [version x] Accounting and then run this update again" 

That issue is cause by an out of data DLL generally the Sag.STO.estimatingIntegration.dll is the cause

The issue can resolved by renaming the file Windows 7, Server 2008 and later:  C:\ProgramData\SAGE\Extensions\Sage.STO.EstimatingIntegration.dll Windows XP or Server 2003:  C:\Documents and Settings\All Users\Application Data\SAGE\Extensions\Sage.STO.EstimatingIntegration.dll

However there are other file that could cause this issue

For more information please refer to the knowledgebase

I was able to resolve the issue by logging onto the workstation as admin and renaming the EstimatingIntegration.dll to EstimatingIntegration.old on each workstations prior to running the update(s). I ran the update(s) as a user with local admin privileges and even though it was not prompted, I restarted after successfully completing the procedure(s)

I was able to resolve the issue by logging onto the workstation as admin and renaming the EstimatingIntegration.dll to EstimatingIntegration.old on each workstations prior to running the update(s). I ran the update(s) as a user with local admin privileges and even though it was not prompted, I restarted after successfully completing the procedure(s)