test.d

---
void main()
{
    import std.net.curl;
    import std.stdio;

    writeln(get("http://google.com"));
}
---

rdmd -g test.d

---
std.net.curl.CurlException@std\net\curl.d(3691): couldn't resolve host name on handle 26B4878
----------------
0x0040572A in pure @safe void std.exception.bailOut!(std.net.curl.CurlException).bailOut(immutable(char)[], uint, const(char[])) at d:\Programming\D\dmd.2.067.0.windows\dmd2\windows\bin\..\..\src\phobos\std\exception.d(400)
0x004056D2 in pure @safe bool std.exception.enforce!(std.net.curl.CurlException, bool).enforce(bool, lazy const(char)[], immutable(char)[], uint) at d:\Programming\D\dmd.2.067.0.windows\dmd2\windows\bin\..\..\src\phobos\std\exception.d(352)
0x00431356 in void std.net.curl.Curl._check(int)
0x004064F6 in char[] std.net.curl.get!(std.net.curl.HTTP, char).get(const(char)[], std.net.curl.HTTP) at d:\Programming\D\dmd.2.067.0.windows\dmd2\windows\bin\..\..\src\phobos\std\net\curl.d(405)
0x004020A4 in char[] std.net.curl.get!(std.net.curl.AutoProtocol, char).get(const(char)[], std.net.curl.AutoProtocol) at d:\Programming\D\dmd.2.067.0.windows\dmd2\windows\bin\..\..\src\phobos\std\net\curl.d(419)
0x0040202A in _Dmain
0x00423C0A in D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ6runAllMFZ9__lambda1MFZv
0x00423BDF in void rt.dmain2._d_run_main(int, char**, extern (C) int function(char[][])*).runAll()
0x00423AF7 in _d_run_main
0x004237A0 in main
0x0046E025 in mainCRTStartup
0x76D0338A in BaseThreadInitThunk
0x77269F72 in RtlInitializeExceptionChain
0x77269F45 in RtlInitializeExceptionChain
---

Using DMD32 D Compiler v2.067.0 (release version) on Windows.

google.com resolves fine when using ping or a browser, so what could be causing this?

It happens with every other host name I've tried, too.