Is there a 64-bit build of IIS express 7.5?

Question

The documentation at http://learn.iis.net/page.aspx/1010/iis-75-express-readme/ says that:

Both 32-bit and 64-bit systems are supported, however only a 32-bit build of IIS 7.5 Express exists.

Why is this limitation there? are there any plans to get a 64-bit build?

I'm getting a lot of OOME using the 32-bit express on my test machine ... how were are supposed to simulate running on the real IIS, if the test server is so limited ...

The docs are quite clear. Any answer would only be speculative. — spender, Sep 08 '11 at 09:05
Might push the iis-express team to produce the much needed 64-bit build. — Jalal El-Shaer, Sep 08 '11 at 12:38
What's wrong with real IIS? I can't think why you'd need to simulate something that already exists. Does it not run on your Windows version? — spender, Sep 08 '11 at 12:57
@spender ... nothing is wrong with the real IIS ... why did microsoft created an express edition ? To use it for development, right? And in development you want to simulate everything ... makes sense ? — Jalal El-Shaer, Sep 13 '11 at 09:55
I use full IIS for development. It's easy and you know that it's going to work in production. I worry that using subtly different product for dev might sting me later. — spender, Sep 13 '11 at 10:00
I like the full IIS, but using it requires to launch VS in admin mode. — Timores, Apr 13 '12 at 08:55

score 11 · Accepted Answer · edited Jan 07 '13 at 20:15

11

IIS Express 8.0 has 64-bit support. At the time of writing it's an RC.

http://www.microsoft.com/en-us/download/details.aspx?id=34679

edited Jan 07 '13 at 20:15

Chris S

64,770
52
221
239

answered Mar 07 '12 at 11:47

Tom Robinson

8,348
9
58
102

Wonderful news ... at last something helpful – Jalal El-Shaer Mar 07 '12 at 11:58
Dead link (as of 2012-09-05). I've posted a link to the download. – Thomas Bratt Sep 05 '12 at 10:52
Thanks, I've also updated my link to make it easier to find the right link. – Tom Robinson Sep 07 '12 at 07:32
I've fixed the link to the latest version – Chris S Jan 07 '13 at 20:15

score 4 · Answer 2 · answered Nov 13 '12 at 09:42

4

It's now here iisexpress_8_0_RTM_x64_en-US.msi -

http://www.microsoft.com/en-us/download/details.aspx?id=34679

answered Nov 13 '12 at 09:42

78lro

1,790
7
37
63

score 4 · Answer 3 · answered Oct 18 '16 at 17:33

4

This option is now part of Vs 2013 / 2015:

Tools -> Options -> Projects and Solutions -> Web Projects -> Use the 64 bit version of IIS Express

answered Oct 18 '16 at 17:33

Axel Márquez

654
1
6
12

score 3 · Answer 4 · answered Jan 18 '12 at 20:54

3

As of the date of this answer, there is no 64-bit build for IIS express. We all hope this changes sometime soon in the future.

answered Jan 18 '12 at 20:54

Jalal El-Shaer

14,502
8
45
51

Is there a 64-bit build of IIS express 7.5?

4 Answers4

Linked