I'm not from Stardock support, but here goes:

Here's a copy from another post I made:

I'm rather disappointed in Stardock for dropping the ball on XPx64.

Try this workaround:

1) download impulse installer.  If prompted, choose "save file" instead of "run".  If not prompted and the installer launches automatically, adjust your browser settings to allow for saving files instead of automatically running them.

2) find impulse_setup.exe in your download folder (usually My Documents\My Downloads\, unless you've changed it or directed your browser to save downloads somewhere else)

3) right-click on impulse_setup.exe and choose "properties"

4) click on "compatibility" tab

5) tick the box for "run in compatibility mode for:" and choose Windows XP from the drop-down menu below it.

6) click "OK"

7) Double-click impulse_setup.exe to launch your now-functional installer without the annoying admonition about using a "stripped-down version of M$ Server 2003".

There are minor annoyances with the functionality of Impulse when done this way:

- WindowBlinds doesn't update properly through Impulse (but I use the stand-alone x64 installer without issue)

- BootSkin doesn't install at all (not suprising since I'm not running Vista)

- Most other programs install/update, though sometimes with multiple tries

NowTry the compatibility "trick" on any of your programs that are biased against XPx64. No guarantees that it'll work with Demigod, but I haven't run across a game that wouldn't run on XPx64 yet.

I'm not a developer, and I don't want to flame hard-working coders, but this seems to me to be waaaaaay too easy to get around to not be an easy fix from Stardock.  C'mon guys, don't give us this "won't work with x64" line of BS.

While you're at it, give us an option for stand-alone installers that don't rely on Impulse.  Certainly some will enjoy the convenience of a program that monitors/notifies/installs updates, but not everyone.  And certainly not at the expense of not being able to install a game they paid for simply because Impulse wasn't compliant.  Pretty Please.

C:\Program Files (x86)\Stardock\Impulse would be where a 32bit app would install.  All 64bit native apps install into the C:/program files/ folder.  There may be a 64bit version out, but I'm thinking it would have to be for Vista x64.

Peace

XP 64bit is a bastard child. Even Zune software (as you guys may or may not known is made by Microsoft) does not support XP 64bit. If you want pretty good support in most programs for 64bit you guys should most likely look into Vista 64 bit or wait for Windows 7.

There are also major multimonitor bugs in XP64 that will never be addressed, etc. In every way, Vista 64 is a MUCH more solid option. 

And, of course, when Windows 7 comes out of beta it will rule them all.

I'm getting an error code when trying to update sins on xp 64. I get this message Decompression error,illegal rep dist code can anyone help figure it out. Does it have to do with running 64 because I just added it to my system last week. I neede to upgrade from xp.

None of our software is designed for or tested under or supported under Windows XP 64 bit. Vista/7 64 bit is not a problem.