Until about a week ago if I clicked on a drawing file in explorer this would automatically open my autocad programme, and if I selected a second drawing this would open in the same open programme. Now, however, every time I click on a new file it opens a new Autocad programme. I have had this problem once before many years ago but cannot remember how to resolve it - Any help would very much appreciated.
It is set at 0 - I don't think the solution lies here because it is not a case of wanting multiple files in a single window - I only want a single file in each window. If I open a new drawing by the file/ open route a new file is opened in a new window. But if I select the files using explorer I end up with 4 or 5 autocad applications open - but thanks anyway
Are you sure that there are actually that many "applications"
open (the TASKBAR variable can make it externally look this way)? Check
your TASKBAR variable, and set it to 0 (and assuming your SDI variable is set to
0) that may be what your looking for.
I am having a similar problem. I am working current projects in ACA 2008 and if I double click on another drawing to open it it opens in ADT 2006, the only other Autocad program I have loaded. Even if the drawing was last saved in 2008!! Which, as you know, is an invalid format to open in 2006. Pain in the neck and a big waste of time.
I hope there is a way to fix this problem other than unloading 2006!
This has been a problem recently (well, for a while now). Did you or someone at your company recently install a service pack? Has the application used to start AutoCAD (file association) been changed to acad.exe from AcLauncher? The practice of opening drawing files from Windows Explorer is an old one, and causes problems more often than not with the newer versions of AutoCAD and it's verticals.
The SDI variable would change whether AutoCAD allows more than one open drawing in a session but it has nothing to do with opening multiple sessions. If SDI were set to "1", it would simply prompt you to close the open draiwing before opening another.
Here is a reply I gave to a recent post on the same issue.
>>Every version of AutoCAD uses ACAD.EXE as it's application. This is also true of most if not all the vertical products. Each AutoCAD version tells Windows to associate .dwg files with that version when it is opened. If you open DWG Trueview, it will become the application associated with .dwg files. Using the AcLauncher does not fix this issue. AcLauncher was included and is associated by default to be able to open multiple Autodesk files from sources other than the application's OPEN dialog. Since, I believe 2008 (maybe 2007), AutoCAD has opened multiple sessions of itself with one drawing in each session if using ACAD.EXE and DDE properties instead of one session with all drawings open in that session. AcLauncher still has it's problems with handling files but nothing changes the fact that no matter whether you use AcLauncher or Acad.exe to open files, the last Autodesk product that was opened is the one associated in Window. A multiple version office doesn't mean that each user has multiple versions. If you don't have licenses for the most up-to-date version on each station, have the newer versions save to the lowest version in the office until you can upgrade. As for dealing with outside sources (clients, vendors etc.), have them supply you with the lowest version in your office or get the appropriate conversion tools. And always make customizations in the lowest version in your office (2006 on).<<
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