I use a lot of HTA files, including Microsoft’s terrific Scriptomatic.hta, which writes vbscripts for you. On a Windows 2008 server you need to copy the HTA file down to the local machine before running. This REG file, HTA_RunAS.reg, gives you a context menu to RunAs Administrator. Rename to .REG to and merge. This is a subset of the reg file in a more recent post.