You can repack various compressed archives (including .tgz and .cab) between each other, should you really need it. A somewhat uncommon, however possible conversion. Some tools capable of direct repacking of tgz to cab are listed below, but you can perhaps find other.
Convert Gzip compressed TAR archive to Windows Cabinet Compressed Archive.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert tgz to cab on Windows
IZArc is free compression utility for Microsoft Windows. IZArc supports variety of archive formats such as 7-zip, ARJ, ZIP, RAR, CAB, ACE, PAK etc. Also supports popular CD/DVD images such as ISO, BIN, NRG, IMG, MDF etc. IZArc also can convert archives and CD/DVD images. IZARC can repair damaged archives, creates self-extract archivers. IZArc is translate to many languages.
Convert from tgz file
to cab file
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.