Having executable files (and remember DLL - including BPLs - *are* executable files) in user writeable folders is huge security risk. or other methods to alter the path see my previous post) Thereby or you do install in the same application directory (or below it), or install in *your* "common" directory (under common files, for example) and set the application DLL search order to use that path as well (there's an API for that. While MS can install its runtime in the Windows system directory - but it does use strong names too - others can't (and shouldn't) so easily. "DLL hell" was caused by sharing DLLS and having multiple copies of the same DLL available somehow for each application, and which one was actually used depending on "run time" conditions like the system path variable, and/or the order of installing applications because each installer happily overwrite others. The solution to avoid "DLL hell" is exactly to have each application DLLs available to that application only - or use strong named ones in a "global" area - to ensure each application uses only the DLL it is designed for. * Correction, max path length is 2048 - very difficult to find a difinitive source of this information on the microsoft site - the max size of an env variable is 2048, however I have seen the path variable truncated at 1024 many times. I didn't see it so not sure when that is supposed to appear, but in any event, if your installer or progam needs to add something to the path environment variable, PLEASE ADD IT TO THE END!! and save us all a bunch of time. according to the doco, XE7 will popup a message about this. Embarcadero were told about this issue many times over several releases. I wasted several hours again today after installing XE7. So for XE7, that cuts it down from 218 to 80 characters, if like me you also have multiple versions of Rad Studio installed, this can be a big saving.Īs for Rad Studio, it's extremely rude to add things to the start of the path, the truncation it causes can ruin a machine. Once you have those junction points, you can then edit your path and replace the long paths, for example (for XE7) :Ĭ:\Program Files (x86)\Embarcadero\Studio\15.0\bin -> C:\Studio\15.0\binĬ:\Program Files (x86)\Embarcadero\Studio\15.0\bin64 -> C:\Studio\15.0\bin64Ĭ:\Users\Public\Documents\Embarcadero\Studio\15.0\Bpl -> C:\spub\15.0\BplĬ:\Users\Public\Documents\Embarcadero\Studio\15.0\Bpl\Win64 - > c:\spub\15.0\Bpl\Win64 Mklink /j spub C:\Users\Public\Documents\Embarcadero\Studio Mklink /j Studio C:\Program Files (x86)\Embarcadero\Studio Mklink /j rspub C:\Users\Public\Documents\RAD Studio Mklink /j RS C:\Program Files (x86)\Embarcadero\RAD Studio The trick is to create links for the most common paths, so on mine I created these Sadly, this will polute your C: drive with new folders but it's better than the alternative. If you look at the entries that XE7 added to the start of your path you will see something like this :Ĭ:\Program Files (x86)\Embarcadero\Studio\15.0\bin Ĭ:\Program Files (x86)\Embarcadero\Studio\15.0\bin64 Ĭ:\Users\Public\Documents\Embarcadero\Studio\15.0\Bpl Ĭ:\Users\Public\Documents\Embarcadero\Studio\15.0\Bpl\Win64 įortunately this can be shortened by the use of junction points. You will find programs will not run, the task bar displays the wrong icons for programs, even getting to the control panel can be problematic. What happens, is that eventually, important entries get truncated off end of the path, and strange things happen. Worst still, they add those 200+ characters to the front of the path, not the end. anyway, we're stuck with it (along with it's best buddy, MAX_PATH).Įach version of Delphi adds over 200 characters to your system path. Why this limit still exists on windows I have no idea. The Windows Path environment variable has a limit of 1023 * 2,048characters, a stupidly short limit in this day and age, and when this limit is exceeded the path is truncated. Support and maintenance updates will continue to be provided through August 2013.Update : Still the same situation with XE8, Rad Studio 10 Seattle, Rad Studio 10.1 Berlin. * Embarcadero Prism is no longer an included product within RAD Studio as of the XE4 release and is no longer offered as a standalone product. * HTML5 Builder is no longer an included product within RAD Studio as of the 10.3 release and is no longer offered as a standalone product. * Swing Designer is provided as is, and is not supported. Release and Lifecycle Definitions (Japanese)
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