Writing large file fails on shared folder, succeeds on C:\

[Chas Emerick]

Stats:

• OS X 10.5.8 host, Macbook Pro hardware
• Windows Vista x64 guest
• vbox additions installed

Using the most recent release of the ​NSIS installer generator, writing an installer .exe that is going to be larger than some threshold (I believe the threshold is 16MB -- a guess arrived at by trial-and-error) succeeds when written to C:\, but fails when written to any shared folder location.

I'm attaching a *very* simple installer script, and a data file that will result in a total installer size > 16MB. The script takes a couple of arguments, making it easy to change where the generated installer is to be written and/or what file should be included in the installer (which should make debugging work somewhat easier).

Some sample output, showing a failure writing to G:\ (a shared folder in my environment), but success writing to C:\:

  G:\vbox-share-write-failure>makensis /Dinput=bigfile /Doutput=install.exe writeFailure.nsi
  Output: "G:\vbox-share-write-failure\install.exe"
  Install: 3 pages (192 bytes), 1 section (1048 bytes), 5 instructions (140 bytes)
  , 48 strings (826 bytes), 1 language table (230 bytes).

  Using zlib compression.

  EXE header size:               33792 / 35840 bytes
  Install code:                    836 / 2764 bytes
  Install data:               17457156 / 17457156 bytes
  Error: can't write 17457156 bytes to output
  Error - aborting creation process

  G:\vbox-share-write-failure>makensis /Dinput=bigfile /Doutput=C:\install.exe writeFailure.nsi
  Output: "C:\install.exe"
  Install: 3 pages (192 bytes), 1 section (1048 bytes), 5 instructions (140 bytes)
  , 48 strings (826 bytes), 1 language table (230 bytes).

  Using zlib compression.

  EXE header size:               33792 / 35840 bytes
  Install code:                    836 / 2764 bytes
  Install data:               17457156 / 17457156 bytes
  CRC (0x0202F8C2):                  4 / 4 bytes

  Total size:                 17491788 / 17495764 bytes (99.9%)

  G:\vbox-share-write-failure>