EclipseNSIS not working on Server 2008 64bit

Trying to use EclipseNSIS 9.8 on a Windows Server 2008 R2 system.

When I start Eclipse Helios an error is generated indicating that EclipseNSIS only supports Windows NT4.0, Windows 2000, Windows XP, Windows Server 2003 and Windows Vista.

I was under the impression the EclipseNSIS 9.8 allows 64 bit support.

Are there any other install / configuration requirements I should check?

I suppose this is problem of Eclipse, not EclipseNSIS, maybe try Eclipse forums?

Once you have installed Eclipse, NSIS, GEF and EclipseNSIS on a Windows Server 2008 R2
1) Open ..\eclipse\plugins\net.sf.eclipsensis_0.9.8.1.jar with 7-Zip
2) Navigate to ..\eclipse\plugins\net.sf.eclipsensis_0.9.8.1.jar\net\sf\eclipsensis\
3) Open EclipseNSISPluginResources.properties
4) Add 'Windows Server 2008 R2' to the supported.os, nt.os, 2K.os, vista.os and win7.os properties e.g.

supported.os=Windows NT#4.0,Windows 2000,Windows XP,Windows 2003,Windows Vista,Windows NT (unknown),Windows Server 2008,Windows Server 2008 R2,Windows 7
nt.os=Windows NT,Windows 2000,Windows XP,Windows 2003,Windows Vista,Windows NT (unknown),Windows Server 2008,Windows Server 2008 R2,Windows 7
2K.os=Windows 2000,Windows XP,Windows 2003,Windows Vista,Windows NT (unknown),Windows Server 2008,Windows Server 2008 R2,Windows 7
vista.os=Windows Vista,Windows NT (unknown),Windows Server 2008,Windows Server 2008 R2,Windows 7
win7.os=Windows Server 2008 R2,Windows 7

5) Save and Exit EclipseNSISPluginResources.properties
6) Allow 7-Zip to save the change to ..\eclipse\plugins\net.sf.eclipsensis_0.9.8.1.jar
7) Launch Eclipse and hopefully the EclipseNSIS plugin will load without errors.