Flash CS4 Silent install alone failing

Operating System -- windows 7, Internet Explorer 8.0

I am trying to install Flash CS4 sile4ntly. It fails with the  Exit code: 7. however i tried to run same installer in Full GUI mode. It works fine.

The difference i suspect as per below log is that in silent the Payload files are prefix with Proxy.xml. however in GUI mode is boot.xml

Logs Full GUI install:

*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*

START - Installer Session

*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*

RIBS version: 2.0.133.0

-------------------- BEGIN - Proxy File Summary - BEGIN --------------------

AdobeCode: {02FD2912-C5C4-41f0-B7D2-0C1871EB9565}

Path: \\ho\dfs01\CD\Flash\CS4\disk1\Adobe CS4\payloads\AdobeFlash10-es-ExtensionFL30\AdobeFlash10-es-ExtensionFL30.boot.xml

AdobeCode: {043A67CA-08C4-4669-A2A1-B03F6D8D509C}

Path: \\ho\dfs01\CD\Flash\CS4\disk1\Adobe CS4\payloads\AdobeWinSoftLinguisticsPluginAll\AdobeWinSoftLinguisticsPluginAll.boot.xml

AdobeCode: {064F0D64-1F54-4F4B-953E-BAED5D7E69B2}

Path: \\ho\dfs01\CD\Flash\CS4\disk1\Adobe CS4\payloads\AdobePDFSettings9-mul\AdobePDFSettings9-mul.boot.xml

AdobeCode: {092DF7B0-6E10-4718-9763-9704CC4E6EF9}

Path: \\ho\dfs01\CD\Flash\CS4\disk1\Adobe CS4\payloads\AdobeALMAnchorService2-mul\AdobeALMAnchorService2-mul.boot.xml

AdobeCode: {0967604F-33E6-4C6B-934B-157C3AB4ED4C}

Logs of Silent install:

*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*

START - Installer Session

*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*

RIBS version: 2.0.133.0

-------------------- BEGIN - Proxy File Summary - BEGIN --------------------

AdobeCode: {02FD2912-C5C4-41f0-B7D2-0C1871EB9565}

Path: \\ho\dfs01\CD\Flash\CS4\disk1\Adobe CS4\payloads\AdobeFlash10-es-ExtensionFL30\AdobeFlash10-es-ExtensionFL30.proxy.xml

AdobeCode: {043A67CA-08C4-4669-A2A1-B03F6D8D509C}

Path: \\ho\dfs01\CD\Flash\CS4\disk1\Adobe CS4\payloads\AdobeWinSoftLinguisticsPluginAll\AdobeWinSoftLinguisticsPluginAll.proxy.xml

AdobeCode: {064F0D64-1F54-4F4B-953E-BAED5D7E69B2}

Path: \\ho\dfs01\CD\Flash\CS4\disk1\Adobe CS4\payloads\AdobePDFSettings9-mul\AdobePDFSettings9-mul.proxy.xml

AdobeCode: {092DF7B0-6E10-4718-9763-9704CC4E6EF9}

Path: \\ho\dfs01\CD\Flash\CS4\disk1\Adobe CS4\payloads\AdobeALMAnchorService2-mul\AdobeALMAnchorService2-mul.proxy.xml

AdobeCode: {0967604F-33E6-4C6B-934B-157C3AB4ED4C}

Pls help to suggest a solution for this issue.