Feature '75a0fea7-cd50-401e-af0e-782f3662a299' is not installed in this farm, and can not be added to this scope.

When I was trying to create Top-Level site using "Help Desk" template I got next error "Feature '75a0fea7-cd50-401e-af0e-782f3662a299' is not installed in this farm, and can not be added to this scope"

One of the ways to resolve this issue to install Windows SharePoint Services 3.0 Application Template: Application Template Core.

Install:

stsadm -o addsolution -filename path\mySolution.wsp

stsadm -o execadmsvcjobs

stsadm -o deploysolution -name mySolution.wsp -immediate -allowGacDeployment -force

Uninstall:

stsadm -o retractsolution -name mySolution.wsp -immediate

stsadm -o execadmsvcjobs

stsadm -o deletesolution -name mySolution.wsp -override

stsadm -o execadmsvcjobs

Web Template IDs in Sharepoint

STS#0 Team site
STS#1 Blank site
STS#2 Document workspace
MPS#0 Basic meeting workspace
MPS#1 Blank meeting workspace
MPS#2 Decision meeting workspace
MPS#3 Social meeting workspace
MPS#4 Multipage meeting workspace
WIKI#0 Wiki
BLOG#0 Blog

BDR#0 Document center—A central document management location for an enterprise
OFFILE#0 Records center—A central location in which records
OFFILE#1 managers can define routes for incoming files
CMSPUBLISHING#0 Publishing site
BLANKINTERNET#0 Publishing site—A site for publishing web pages on a schedule with workflow features enabled
BLANKINTERNET#1 Press releases site
BLANKINTERNET#2 Publishing site with workflow—A publishing site for web pages using approval workflows
SPSNHOME#0 A site for publishing news and articles
SPSREPORTCENTER#0 Report center—A site for creating, managing, and delivering web pages, dashboards, and Key Performance Indicators (KPIs)
SPSPORTAL#0 A starter hierarchy for an intranet divisional portal
PROFILES#0 A profile site that includes page layouts with zones
BLANKINTERNETCONTAINER#0 Publishing portal—a site collection preconfigured for revision-controlled, secure content creation and publication

BDR#0 Document center—A central document management location for an enterprise
OFFILE#0 Records center—A central location in which records
OFFILE#1 managers can define routes for incoming files
CMSPUBLISHING#0 Publishing site
BLANKINTERNET#0 Publishing site—A site for publishing web pages on a schedule with workflow features enabled
BLANKINTERNET#1 Press releases site
BLANKINTERNET#2 Publishing site with workflow—A publishing site for web pages using approval workflows
SPSNHOME#0 A site for publishing news and articles
SPSREPORTCENTER#0 Report center—A site for creating, managing, and delivering web pages, dashboards, and Key Performance Indicators (KPIs)
SPSPORTAL#0 A starter hierarchy for an intranet divisional portal
PROFILES#0 A profile site that includes page layouts with zones
BLANKINTERNETCONTAINER#0 Publishing portal—a site collection preconfigured for revision-controlled, secure content creation and publication