c# - Is it possible to avoid MAX_PATH limit using WiX variables? -


i'm developing project in winforms, , i'm on process of creating installer using wix.

but when installer going copy .dll comes long path, visual studio says this:

'really long route'\enterpriselibrary....\ long, qualified file name must less 260 characters, , directory name must less 248 characters.

i found articles talks max_path limitations said in stackoverflow question related windows api.

i'm working on big team, , discovered known error, not allowed shorten or modify path.

i tried solution link above says, using \\?\ characters before, wixvariables remain this:

<?define examplespath="\\?\$(sys.currentdir)\..\..\examplesfolder" ?>

that results this:

\\?\c:\reallylongpath\files

but doesn't seem work wix variables.

so question is:

is there way avoid 260 characters limitation? if so, how?

please, need answer on this!

edit: while try @jans' suggestion, found that, if add \\?\ string wix variable, error message changes. says:

the system cannot find file '\\?\reallylongpath\..\..\andreallylongfile\'

i'm thinking maybe \\?\ not converting ..\ need use... suggestion here?

edit2: found line @ msdn:

a consequence \\?\ turns off file name normalization performed windows apis, including removing trailing spaces, expanding ‘.’ , ‘..’

:___(

this terrible hack, create symlink real directory. symlink regular link, except behaves real directory.

suppose have long directory causes trouble:

c:\blahblahblah\thisisreallylong\andnotaccessible\blahblahblah\

you can create symlink it, has name like, considerably shorter. think of alias. if call on console, example in c:\temp directory:

c:\temp\>mklink /d reallylong c:\blahblahblah\thisisreallylong\andnotaccessible\blahblahblah\

then afterwards, can access c:\temp\reallylong if real directory. note need local admin rights create symlinks.


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